Probability and Predictions

When I get a problem that asks for a PREDICTION, I need to set up a...

• bank account

• proportion

• tent

• friend on a blind date

Shannon made the last 12 out of 20 shots for the varsity basketball team.  How many shots would you expect him to make in his next 160 shot attempts?

• 96
• 120
• 24
• 80

Tags

CCSS.6.RP.A.3B

A Karen rolls a die and wants either a 3 OR 4 to win the game. What is the probability she will get a 3 OR a 4?

• 1/6

• 5/6

• 1/2

• 1/3

• 60

• 120

• 90

• 30

Tags

CCSS.7.SP.C.5

CCSS.7.SP.C.6

What is the P( not purple) on this spinner?

• 2/5

• 1/5

• 4/5

• 3/5

Tags

CCSS.7.SP.C.5

There are 10 quarters, 6 dimes, 3 nickels, and 2 pennies in a penny bank. What is the probability of picking a nickel out without looking?

• 1/7

• 1/5

• 1/3

• 1/2

When finding a COMPOUND probability, I must...

• add

• subtract

• multiply

• take the square root and divide by 87

• none of these.

The letters that form the word ALGEBRA are placed in a bowl. What is the probability of choosing the letter “A” and then choosing “A” again? The letters are replaced. (Put back each time.)

• 4/7

• 2/7

• 4/14

• 4/49

There are 4 white marbles, 6 red marbles, and 2 blue marbles. Once a marble is selected, it is REPLACED. Find the probability of selecting 2 blue marbles.

• 1/3

• 1/36

• 1/6

• 1/144

You flip a nickel three times.

Find the probability that all flips will land on tails.

(Hint: You will multiply THREE probabilities.)

• 1/2

• 1/4

• 1/6

• 1/8