22 Best Probability Questions and Answers (Q&A) - ProProfs Discuss

What is the probability of picking a green marble, then a green marble if you do not put back the first marble?

C. Perez, Writer
Answered: Mar 07, 2019

The correct answer is 3/95.
The probability of picking a green ball marble at first is 4/20 (total number of green marbles/ total number of marbles present).
Since the first green...Read More

2 Answers

1937 views

What is the probability that on a math test 5 out of 30 students got an A all three got an A on the test if three students are chosen at random without replacement?

D. gray, Builder
Answered: Mar 07, 2019

The correct answer is option 1/406.
To find the probability of 3 students got an A on a test, multiple the probabilities of the 3 students. Probability of the first student = 5/30 = 1...Read More

2 Answers

1701 views

What is the probability that the first crayon is red and the second crayon is green?

John Smith
Answered: Apr 18, 2024

3/46
First find the probability of picking a red crayon (6/24 or 1/4), then find the probability that the second crayon is green (6/23). Multiply the probabilities together to get: 3/46 reduced

1 Answer

1033 views

What is the probability of picking a green marble, then a blue marble if you do not put back the first marble in a jar full of 6 red, 4graan, 5 blue, 5 yellow marbles?...

John Smith
Answered: Apr 18, 2024

1/19

Find the probability of picking green (4/20), then find the probability of picking blue (5/19). Remember there is one less marble in the jar. Finally multiply the probabilities and...Read More

2 Answers

676 views

What can be considered as an experiment?

John Smith
Answered: Apr 18, 2024

Choosing a marble from the jar.

An experiment is defined as a situation that involve chance. The experiment in A, B and D doesnt involve chance.

1 Answer

517 views

What would be the experimental probabililty of the coin landing on heads if it is ossed 50 times, and it lands on heads 28 times?

Anika Nicole, Wordsmith
Answered: Jun 07, 2018

The correct answer is 14/25.
The proportion of heads in this experiment will be equal to the total number of favorable events (i.e. heads) divided by the total number of events (i.e....Read More

2 Answers

492 views

What is the probability of getting tails in four coin tosses?

D.Anthonyda
Answered: Feb 06, 2018

In four coin tosses, the probability of getting tails would be 0.59. Probability can be considered as the measurement of the chances of an event to occur. This event could be as small as a...Read More

2 Answers

453 views

What will be the probability that all three defective pills will be selected in the case below?

B.Lisa
Answered: Feb 26, 2018

There are seven distinct ways to draw pills without replacing: good, bad, good; good, good, good; bad, bad, bad; good, good, bad; good, bad, bad; and so on. That said, when it comes to individual...Read More

1 Answer

356 views

What is the probability of having children with the same birth date (born in different years)?

J.Barbara
Answered: Mar 07, 2018

In the real world, this problem is going to be quite complex because it needs to take into consideration various factors and settings, such as the difference on the degree of intimacy between the...Read More

1 Answer

293 views

What is the experimental probability that Scott's writers name is picked?

John Smith
Answered: Apr 18, 2024

1/3

Scott is picked 4 out of the 12 times that a name is drawn. Therefore, the probability is 4/12 which can be simplified by 4 to get 1/3.

1 Answer

288 views

What is the difference between Odds and Probability?

F. Daniel, Content Optimization Executive
Answered: Jul 15, 2019

Odds and Probability are two related terms, but they are not the same. Both words are used to determine the chances or possibility of the occurrence of an event. Probability is a mathematical...Read More

1 Answer

285 views

What is the probability of not choosing a blue marble?

John Smith
Answered: Apr 18, 2024

Total number of marbles = 27 + 23 + 16 + 34 = 100 and total number of non-blue marbles = 27 + 16 + 34 = 77. Therefore, the probability of not choosing a blue marble = probability of choosing red,...Read More

1 Answer

269 views

What is the probability that Jackson will finish first if he is in a race with three other people?

F. Ray, Student
Answered: Oct 09, 2020

If there are four people in total, then Jackson has a 25 percent chance of winning, or 100% divided by 4 equals 25%. Probability is the chance of an occasion or more than one event occurring....Read More

2 Answers

61 views

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