Probability Study Review and Test

You flip a nickel three times.
Find the probability that all flips will land on tails.

• 1/2
• 1/4
• 1/6
• 1/8

You pick a marble from this bag.
What is the probability you will choose either a black or white marble?

• 3/5
• 9/100
• 1/10
• 2/5

What is the probability of spinning the spinner and landing on the 7?

• impossible
• equally likely 
• unlikely 
• very likely 

Tags

CCSS.7.SP.C.5

In a drawer, there are 6 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace it, then pick out a 2nd sock. What is the probability that you will pick a brown, then black sock?

• 1/11
• 1/18
• 1/36
• 2/33

What is the probability of spinning an even number? 

• equally likely
• very likely 
• certain
• impossible 

Tags

CCSS.7.SP.C.5

P(cereal or steak)

• 9/40
• 1/40
• 8/40
• 1/2

Tags

CCSS.HSS.CP.B.7

The probability of a video game being defective is 1 out of 10.  About how many video games would be defective in a shipment of 490 video games? (Round your answer to the nearest whole number.)

• 490
• 49
• 98
• 100

Tags

CCSS.7.SP.C.6

An ice-skating rink inspects 25 pairs of skates and finds 2 pairs to be defective.  The rink has 175 pairs of ice skates. Predict the number of pairs that are likely to be defective.

• 14
• 50
• 7
• 88

Tags

CCSS.7.SP.A.2

P(1 and A)

• 1/16
• 1/10
• 4/16
• 1/4

You draw a marble from a bag that has 4 red, 2 blue, and 3 green, you also flip a fair coin. What is the probability you will draw a blue marble and flip a heads?

• 1/9

• 3/9

• 3/6

• 5/6