Percent Increase and Decrease

Question 1

Which statements about experimental probability are true?

Revolt · Accepted Answer

A: Experimental probability is written as a ratio.; C: Experimental probability is found by conducting trials of an experiment.; D: Experimental probability includes the number of times an event occurs in the numerator, and the total number of trials in the denominator.

Question 2

Flip a coin 4 times and calculate the experimental probability of the coin landing heads up.

Revolt · Accepted Answer

C: 3/4

Question 3

What is Mason’s error?

Revolt · Accepted Answer

C: Mason compared the number of free throws made to the number of free throws missed.

Question 4

Perform the experiment by spinning the spinner 7 times. Which color has the highest frequency, and what was that color’s experimental probability?

Revolt · Accepted Answer

C: purple; 3/7

Question 5

Davis predicts that if he spins the spinner another 20 times, the frequency for the red and green segments will still be equal. Is Davis correct?

Revolt · Accepted Answer

D: No. The frequencies and probabilities for red and green segments might change in the next experiment.

Question 6

What can you predict regarding the probability of the coin landing heads up?

Revolt · Accepted Answer

C: With more trials, the frequency of heads up will equal the frequency of tails up.

Question 7

Flip a coin 4 more times to increase the total number of trials to 8. What is the experimental probability of the coin landing heads up?

Revolt · Accepted Answer

D: 5/8

Percent Increase and Decrease Answers

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