7A 4.1.2b

Suppose these are the probabilities for the letters on a spinner: P(A) = 1/4, P(B) = 1/3, P(C) = 5/12. Predict the number of times you would land on each letter when you spin the spinner the number of times given. You spin the spinner 12 times.

A ​ ​ (a)   times

B ​ (b)   times

C​ ​ (c)   times

• 3
• 4
• 5
• 1
• 2
• 6
• 7
• 8

Suppose these are the probabilities for the letters on a spinner: P(A) = 1/4, P(B) = 1/3, P(C) = 5/12. Predict the number of times you would land on each letter when you spin the spinner the number of times given. You spin the spinner 96 times.

A​ (a)   times

B ​ (b)   times

C ​ (c)   times

• 24
• 32
• 40
• 30
• 28
• 36
• 34
• 42

Suppose these are the probabilities for the letters on a spinner: P(A) = 1/4, P(B) = 1/3, P(C) = 5/12. Predict the number of times you would land on each letter when you spin the spinner the number of times given. You spin the spinner 6000 times.

A ​ (a)   times

B ​ (b)   times

C ​ (c)   times

• 1500
• 2000
• 2500
• 2250
• 2400
• 2700
• 1400
• 1800

You roll a six-sided number cube 30 times. Use the results listed in the table to answer each question. What is the theoretical probability of rolling a number less than 4?

Mathematical Equivalence

ON

What is the experimental probability of rolling a number less than 4?

Mathematical Equivalence

ON

What is the percent error for P(less than 4)?

(enter a number only)

Mathematical Equivalence

ON

What is the theoretical probability of rolling a 2?

Mathematical Equivalence

ON

What is the experimental probability of rolling a 2?

Mathematical Equivalence

ON

What is the percent error for P(2)?

Mathematical Equivalence

OFF

How might you adjust the experiment to decrease the percent error?

• Increasing the number of trials

• Decreasing the number of trials

• There is no way to decrease the percent error