Probability Quick Check

A card is drawn at random from a deck of cards. Find the probability of getting the 3 of Hearts.

• 1/52

• 1/32

• 0.0192

• none of these

A die is rolled and a coin is tossed, find the probability that the die shows an odd number and the coin shows a head.

• 1/2

• 1/4

• 1/8

• none of these

You roll two 6-sided dice. What is the probability that the sum of the two dice is 9?

• 1/18

• 1/9

• 1/12

• none of these

A fair spinner has four equally divided color sections (blue, red, green, and yellow). What is the probability that the spinner will land on green?

• 1/2

• 1/4

• r^pi/4

• none of these

An urn contains 5 red, 3 green, and 4 yellow marbles. A marble is randomly chosen from the urn. The marble is replaced in the urn, and a second marble is chosen. What is the probability of choosing a red and then a green marble?

• 1/9

• 1/27

• 5/48

• none of these

A class has 4 boys and 12 girls. They are randomly divided into 4 groups of 4. What is the probability that each group has 1 boy?

• 0.0352

• 0.0005

• 1.1471*10^-12

• none of these

You roll a standard 6-sided die and draw a letter from a bag containing the 26 tiles, each with a different letter of our standard English alphabet on it. What are your chances of picking a 2 and an M?

• 1/78

• 1/156

• 1/32

• none of these

You roll a standard 6-sided die and draw a letter from a bag containing the 26 tiles, each with a different letter of our standard English alphabet on it. What are your chances of picking an even number and a vowel (magánhangzó)?

• 5/26

• 15/78

• 5/52

• none of these

What is the probability of rolling 2 dice and drawing a card from a deck without aces or face cards and getting the same number?

• 6/13

• 3/26

• 0.1978

• none of these

A class of 20 boys and 10 girls has 15 Math majors and 15 Physics students (no other majors). Knowing that half of the girls do Physics, what is the probability of picking a student who is both a boy and a physics major?

• 1/3

• 1/6

• 0.037

• none of these