what is the probaility that thuy will get at least one a between the two course

What is the probability of “at least one student prefers math”?

P (at least one student prefers math) = 1 – (.96)3 = .1153. This matches the answer that we got using the three-step process above. Use the following examples as additional practice for finding the probability of “at least one” success.

What is the probability of getting at least one 4?

What is the probability of getting at least one 4 when you throw 2 dice? - Quora What is the probability of getting at least one 4 when you throw 2 dice? Originally Answered: What is the probability of getting at least one 4 when you throw 2 dices? Getting 4 in one is 1/6 and in second is again 1/6. Probability of getting 4 in both is 1/36.

What is the probability that Mike makes at least one free-throw?

The probability that Mike makes at least one free-throw in five attempts is 0.672. At a given factory, 2% of all widgets are defective. In a random sample of 10 widgets, find the probability that at least one is defective.

What is the probability that at least 2 support green?

The probability that at least 2 support Green is 1 minus the probability that 0 people or 1 person supports Green. The probability that no one supports Green is ( 0.78) 9.

How do you find the probability of at least one?

Lastly, the probability that at least one student prefers math is calculated as: P(at least one prefers math) = 1 – P(all do not prefer math) = 1 – ....Example 1: Free-Throw AttemptsP(makes at least one) = 1 – P(misses a given attempt) nP(makes at least one) = 1 – (0.80) ... P(makes at least one) = 0.672.

How do you calculate at least one of two probability?

0:068:52Calculating Probability - "At Least One" statements - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo basically it says the probability of a is equivalent to one minus the probability of not a and weMoreSo basically it says the probability of a is equivalent to one minus the probability of not a and we're going to use this formula in the next.

What is the probability of getting at least 1 one in 2 throws of a dice?

So, P(at-least single 1) = 11/36.

What is the formula for at least once probability?

Happening at least once is the negation of never happening. Since p(A) + p(not-A) = 1, the probability of never happening determines the probability of happening at least once.

What is the probability of getting at least one head?

We have to find the probability of getting at least one head. We observe that there is only one scenario in throwing all coins where there are no heads. The chances for one given coin to be heads is 1/2. Therefore, the probability of getting at least one head is 7/8.

What does at least mean in probability?

the minimum valueAt least also means “less than or equal to”. Therefore, in probability, at least mean the minimum value that should occur once a random event happens.

What is the probability of getting at least one 3 in 2 throws of a dice?

The 1036 is the probability of exactly one 3. As the problem is stated, the answer is 1136. The event "at least one 3" includes two 3's.

What is the probability of getting at least one 6 when 2 dice are rolled?

When you roll two dice, you have a 30.5 % chance at least one 6 will appear.

What is the probability that at least one of a pair of fair dice lands on 6?

Answer: The probability of rolling a sum of 6 with two dice is 5/36.

What do you mean by at least one?

"At least one" is a mathematical term meaning one or more. It is commonly used in situations where existence can be established but it is not known how to determine the total number of solutions.

What is the probability that at least one fails?

(B) The probability that at least one component fails is 1 minus the probability that all succeed. Since the probability of one component succeeding is 1 minus 0.1, or 0.9, the probability that all succeed is (0.9)6 = 0.53, and 1–0.53 = 0.47.

How do you find the probability of at least three?

Example 1: Free-Throw AttemptsP(X≥3) = 1 – P(X=0) – P(X=1) – P(X=2)P(X≥3) = 1 – . 2373 – . 3955 – . 2636.P(X≥3) = 0.1036.

How do you find the probability of a single event?

In general, you take the total number of potential outcomes as the denominator, and the number of times it may occur as the numerator. If you're tr...

What are the rules of probability?

The 3 basic rules, or laws, of probability are as follows. 1) The law of subtraction: The probability that event A will occur is equal to 1 minus t...

How do you find probabilities with percentages?

To calculate a probability as a percentage, solve the problem as you normally would, then convert the answer into a percent. For example, if the nu...

Is there a probability calculator?

There are numerous probability calculators online, including some that show their work so you can see what steps were involved in the calculation....

What is the probability of 2 cards having at least one ace?

The denominator is the number of 2 card hands, which is ( 52 2). The numerator is the number of 2 card hands which contain at least one ace. This quantity is ( 52 2) minus the number of 2 card hands which do not contain any aces, and hence is equal to ( 52 2) − ( 48 2). Thus, the probability in question is ( 52 2) − ( 48 2) ( 52 2).

How many non-aces are there in a deck?

This you do by saying that there are 48 non-aces in the deck, so you pick any two of those in ( 48 2) ways, and the ways of picking two cards from the complete deck is ( 52 2). So the probability of not picking an ace, is ( 48 2) ( 52 2).

What is the 'at least one' rule?

In an independent event, each situation is separate from previous events. Occasionally when calculating independent events, it is only important that the event occurs at least once. This is referred to as the 'At Least One' Rule. To calculate the probability of an event occurring at least once, it will be the complement of the probability ...

What is the probability that neither Tim nor Jane will win the grand prize?

So, the probability that neither Tim nor Jane will win the grand prize is 0.935. To calculate the probability of at least one of them winning the grand prize, we need to find the complement of that number. The probability of not winning plus the probability of at least one winning is going to equal one whole. So, by subtracting 1 - 0.935 , we can see that the probability of either Tim or Jane winning the grand prize is 0.065, or a 6.5% chance.

How to calculate probability of an event occurring at least once?

To calculate the probability of an event occurring at least once, it will be the complement of the probability of the event never occurring. When calculating this amount, you can use exponents to multiply the amount of the events that occurred. Learning Outcome.

How to find probability of multiple events?

Remember, to calculate the probability of multiple independent events - in this case, both of them not winning the grand prize - we find the probability of each event happening separately and multiply them together. Since both Tim and Jane have the same probability of not winning, we will need to square the probability of one not winning. So, 0.967^2 = 0.935.

How to calculate probability that it will snow at least one day?

To calculate the probability that it will snow at least one day, we need to calculate the complement of this event. To do so, we will subtract 1 - 0.015, which equals 0.985. Tim and Jane know that there is 0.985, or 98.5% chance that it will snow at least one day during their ski trip. As Tim and Jane arrive at the ski resort, snow begins to fall. It is the most beautiful sight they've ever seen.

How long has Chad taught math?

Chad has taught Math for the last 9 years in Middle School. He has an M.S. in Instructional Technology and Elementary Education. Occasionally when calculating independent events, it is only important that the event happens once. This is referred to as the 'At Least One' Rule. To calculate this type of problem, we will use the process ...

When calculating independent events, is it only important that the event occurs at least once?

Occasionally when calculating independent events, it is only important that the event occurs at least once. This is referred to as the 'At Least One' Rule. To calculate the probability of an event occurring at least once, it will be the complement of the event never occurring.

What is the probability that both cards are clubs?

Example 1: Two cards are drawn randomly from a deck of cards. What is the likelihood that both cards are clubs? The probability of the first event happening is 13/52. The probability of the second event happening is 12/51. The probability is 13/52 x 12/51 = 12/204 = 1/17. You could also express this as 0.058 or 5.8%.

What is the probability of choosing a day that falls on the weekend when randomly picking a day of the week?

The probability is 2 ÷ 7 = 2/7 . You could also express this as 0.285 or 28.5%.

How to calculate probability of dependent events?

For example, if you choose 2 cards out of a deck of 52 cards, when you choose the first card, that affects what cards are available when you choose the second card. To calculate the probability for the second of two dependent events, you’ll need to subtract 1 from the possible number of outcomes when calculating the probability of the second event.

How to calculate probability of rolling a 1?

If you're trying to calculate the probability of rolling a 1 on a 6-sided die, the side with the 1 occurs once and there's a total of 6 sides, so the probability of rolling a 1 would be 1/6.

What is the probability that a marble is red?

If a marble is drawn from the jar at random, what is the probability that this marble is red? The number of events is 5 (since there are 5 red marbles), and the number of outcomes is 20. The probability is 5 ÷ 20 = 1/4. You could also express this as 0.25 or 25%.

What is the probability that a seed will not germinate without water?

Since a seed will not germinate without water, the probability will be zero.

What is the probability of drawing a white marble?

So, in our example, the probability of drawing a white marble is 11/20. Divide this out: 11 ÷ 20 = 0.55 or 55%.

What is the probability of getting a tail in one toss?

Probability of getting a tail in one toss = 1/2

What is the probability of selecting a 6?

Probability of selecting a 6 = 4/52

What does probability mean in math?

In mathematics too, probability indicates the same – the likelihood of the occurrence of an event. Examples of events can be :

What is compound probability?

Compound probability is when the problem statement asks for the likelihood of the occurrence of more than one outcome.

What is it called when an event occurs for sure?

Or there are possibilities to different degrees the event may occur. An event that occurs for sure is called a Certain event and its probability is 1.

What is the ratio of P to 1/32?

P (at least one head) = 1 – P (all tails) = 1 – 1/32 = 31/32.

How many cards are there after drawing one card?

After drawing one card, the number of cards are 51.

What is the probability of a student passing math course?

The probability of a student passes math course is 1/3 and passes statics course is 1/4. If the probability to pass both courses is 1/6. What is the probability to pass one of both courses?

What is the probability of passing at least one class?

The probability of passing at least one class is 1 minus the probability of failing both.

What is the key point of ambiguity in the problem statement?

A key point of ambiguity in the problem statement is “a student”. If the problem is stating that students in general have these probabilities of passing, you might think that results for the three subjects are highly correlated, because they are all driven by overall intelligence. In the extreme, you might say that the 1/3 of the students who pass English would be the smart ones, and they would also pass math and science. This would make the answer be 1/3.

What is the answer of the three outcomes if they are correlated?

If the three outcomes are correlated, the answer could be as high as 1/3 (33% ); or if they are anti-correlated, the answer could be zero.

Can 15/35 pass both algebra and geometry?

Let us take an example of a class of 35. Thus, 10/35 would pass algebra and 14/35 would pass geometry. So, it would not be possible for 15/35 to pass BOTH exams since that cannot be higher than either of the total who passed EACH exam.

Is A&B and B&C the same?

Basically, it is the same procedure except you have more intersections that need to be subtracted. These are the three individual intersections (A&B) (A&C) (B&C) and there is one triple intersection that needs to be subtracted twice and that would be (A&B&C). Therefore the formula for your question is.

Is the probability of passing both exams valid?

The statements are not valid unless the wording is changed. The probability of passing BOTH exams can never be more than the total number passing either. So, it would appear to be a trick question, unless the figures in the 1st sentence and in the question have been transcribed incorrectly.

What is the probability of getting 4 in one?

Getting 4 in one is 1/6 and in second is again 1/6. Probability of getting 4 in both is 1/36.

How many possibilities are there in outcome 4?

As you can see, to outcome 4, there are 3 (three) possibilities… Ok!…

How many possible outcomes are there in dice?

I'm sorry, I answered the wrong question! Assuming you have two dice, 6 sides the total number of possible outcomes would be 6^2=36. Then we consider that one of the dice lands on 6, there are 6 possible outcomes including the possibility that other die lands on a 6. So that gives us 6 possible outcomes. Then, we calculate the total number of possible outcomes for if the other one landed on a 6 minus the outcome already accounted for. That gives us 5. 6+5=11. The probability distribution is 11/36.

What is the probability of each roll of a roll?

Each roll gives you a probability of 1 6 for the number you want. And, being totally independent, the full probability is the product, hence

What is the probability that it doesn't roll a 6 faced standard die?

Assuming a 6 faced standard die, unbiased as you said, the probability that it doesn’t roll a 6 = 5/6.

How many equally likely results are there in a throw?

So multiply 1/6 for each die. You can also do this in the same way that we demonstrate the multiplication rule. There are 36 equally likely results, and you want just one of them.

How many kings are in a 52 card pack?

Now, in a pack of 52 cards there are 4 kings and remaining 48 cards are not kings. Total no. of ways of drawing 2 cards from a pack of 52 is 52C2. Again, 2 cards can be drawn from 48 cards (excluding the 4 kings from the pack) in 48C2 ways. Hence, the required probability = 1- 48C2/52C2.

What is the probability that he gets at least one question right?

probability he gets at least one question right is equal to 1 minus the probability he gets no questions right.

What is the question 623118?

Question 623118: . A student is taking a 5 question True-False quiz but he has not been doing any work in the course and does not know the material so he randomly guesses at all the answers.

Is n a 5 question test?

since this is a 5 question test, n would be equal to 5, not 10.

Do all the probabilities of all possible events always add up to 1?

Fortunately there is a much easier way. It takes advantage of the fact that all the probabilities of all the possible events always add up to 1. The only event, other than getting at least one right, is that he gets none right. (Think about it.) So: