Probability Unit Test

How many possible outfits can you make with 2 pairs of shoes, 4 pants, and 6 shirts?

• 24

• 36

• 48

• 52

If you spin the spinner below 200 times, what is the predicted number of times you would land on red or blue?

• 100 times

• 120 times

• 80 times

• 60 times

A survey was recently conducted at the local grocery store asking for customer's favorite fruit: 23 said strawberries, 17 said bananas, 40 said blueberries, 10 said apples. Based on these results, how many people in the town of 12000 people would say they favor strawberries?

• 2800

• 2066

• 3030

• 3067

The experimental probability that it will snow on any given day during the winter in Aspen, Colorado is about 45%. How many days would you predict there to be snowfall over the next 400 days of winter?

• 180 days

• 160 days

• 200 days

• 220 days

Someone was very bored and rolled a 6-sided die 120 times, with the results shown in the table. Which number has a matching experimental and theoretical probability?

• 1

• 3

• 4

• 5

Calculate the compound probability based on the spinners below: P(1 and Red or Blue) =

• P(1 and Red or Blue) = 1/4

• P(1 and Red or Blue) = 1/2

• P(1 and Red or Blue) = 1/3

• P(1 and Red or Blue) = 1/10

Calculate the probability based on the spinners below: P(3 or 5 and Blue) =

• 0.6

• 4/40

• 3/10

• .5

Calculate the probability based on the spinners below: P(Odds and Green) =

• P(Odds and Green) = 1/4

• P(Odds and Green) = 6/40

• P(Odds and Green) = 1/10

• P(Odds and Green) = 2/3

At the local diner, the owner told his staff that based on their data 8 out of every 10 customers that enter the diner order a cup of coffee daily. He predicts that means on a typical day with 235 customers, he needs enough coffee to make 160 cups of coffee. Is the owner correct in his prediction, too high, or too low? How do you know?

• The owner is correct.

• The owner's prediction is too high.

• The owner's prediction is too low.

Based on these experimental results (NOT the theoretical probability), what would be the probability the next two spins would land on yellow and then purple after? P(Yellow then Purple) =

• P(Yellow then Purple) = (Frequency of Yellow / Total Spins) * (Frequency of Purple / Total Spins) = (45/260) * (50/260)

• P(Yellow then Purple) = (Frequency of Yellow / Total Spins) + (Frequency of Purple / Total Spins) = (45/250) + (50/250)

• P(Yellow then Purple) = (Frequency of Yellow / Total Spins) - (Frequency of Purple / Total Spins) = (45/250) * (50/250)

• P(Yellow then Purple) = (Frequency of Yellow / Total Spins) / (Frequency of Purple / Total Spins) = (45/260) / (50/260)