Probability Quiz

Choose a person at random. What is the probability that the person you choose is female or prefers Toyota?

• 50/67

• 29/67

• 71/67

• 21/67

Randomly choose a foreign language student. What is the probability that the student speaks French given that she is a girl?

• 2.14

• .24

• .4

• .8571

What is the probability that a student plays an instrument?

• .55
• .5
• .45
• .4

Tags

CCSS.HSS.CP.A.4

CCSS.HSS.IC.A.1

CCSS.HSS.IC.B.4

CCSS.HSS.ID.B.5

Bag A contains 9 red marbles and 3 green marbles. Bag B contains 9 black marbles and 6 orange marbles. Find the probability of selecting one green marble from bag A and one black marble from bag B.

• 3/20
• 1/4
• 3/31
• 2/27

Tags

CCSS.HSS.CP.A.2

CCSS.HSS.CP.B.8

A day in the year is randomly chosen. Given the day is in the month of December, what is the probability the day is the 25^th? (December has 31 total days.)

• 8.5%
• 8.84%
• 80.6%
• 3.2%

Tags

CCSS.HSS.CP.A.3

CCSS.HSS.CP.B.6

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. Find P(1st orange then green)

• 1/15

• 2/15

• 3/31

• 1/5

A box contains 5 purple marbles, 3 green marbles and 2 orange marbles. Draws are made without replacement. Find P(both marbles are purple)

• 2/9

• 1/3

• 1/2

• 1/4

A certain brand of TV has a 2% chance of being defective. If a school purchases 5 TVs of this brand, what is the probability none of them will be defective?

• 10%

• 90.4%

• 98%

• 4.9%

What statement does the shaded region represent

• A or B
• Not A
• A and B
• Not B

Tags

CCSS.HSS.CP.A.1

What is P(Foreign language | Sport)?

• 37/24

• 14/24

• 23/47

• 37/50