given that a student got an a, what is the probability he or she worked hard for the course

by Nelle Quitzon Published 2 years ago Updated 1 year ago 10 min read

What is the probability that a student will know the answer?

Note that this is not the same as the probability that a selected student is a female graduate student (ie. \(P(F \cap G\))). In this scenario, the marginal probability is not the same as the conditional probability. This means that given the student is a graduate, changes the likelihood that the student is a female.

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

Jun 22, 2016 · A study of correlation of grades for students taking calculus and probability was conducted. The study shows that 25% of all calculus students get an A, and that students who had an A in calculus are 50% more likely to get an A in …

Is there a probability chapter in 10th class?

Oct 03, 2018 · So the probability of the student getting an A and having studied is 0.27, and the probability that they got an A without studying is 0.005. Intuitively this is enough for me to see that the probability that a student studied given that they got an A is. P ( …

What is the probality that a student knows the correct answer?

P (E) = Number of trials in which Event happened/Total number of trials. The theoretical probability of an event E, P (E), is defined as: P (E) = (Number of outcomes favourable to E)/ (Number of all possible outcomes of the experiment) Impossible event: The probability of an occurrence/event impossible to happen is 0.

How do you find the probability of a student?

Part of a video titled Probability for at least two out of 40 students have common birthday

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And what we remain with is 364 P 39 in the numerator divided by 365 ^ 39 you get an idea now thatMoreAnd what we remain with is 364 P 39 in the numerator divided by 365 ^ 39 you get an idea now that number is not that large and you can use calculator to find it.

How do you find the probability of a given A or B?

This probability is written P(B|A), notation for the probability of B given A. In the case where events A and B are independent (where event A has no effect on the probability of event B), the conditional probability of event B given event A is simply the probability of event B, that is P(B). P(A and B) = P(A)P(B|A).

What is the formula of probability?

Formula to Calculate Probability

The formula of the probability of an event is: Probability Formula. Or, P(A) = n(A)/n(S)

How do you calculate probability example?

Divide 11 (number of positive outcomes) by 20 (number of total events) to get the probability. 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 a given b?

P(A/B) is known as conditional probability and it means the probability of event A that depends on another event B. It is also known as "the probability of A given B". P(A/B) Formula is used to find this conditional probability quickly.

What is the probability of event A or B?

The probability that Events A or B occur is the probability of the union of A and B. The probability of the union of Events A and B is denoted by P(A ∪ B) . If the occurrence of Event A changes the probability of Event B, then Events A and B are dependent.

What is probability explain with an example?

Probability is a branch of mathematics that deals with the occurrence of a random event. For example, when a coin is tossed in the air, the possible outcomes are Head and Tail.

Questions and their Solutions

A die is rolled, find the probability that an even number is obtained knowing the number is greater than 3.

Solutions to the Above Questions

The question is to find the probability that an even number is obtained knowing the number is greater than 3 written as a conditional probability P (E|G) .