AnswersGrade 7 MathematicsExperimental Probability

Experimental Probability — Quiz Answers

10 verified answers2 views
1
Free Preview

Tia performed an experiment where she flipped a coin 200 times. The coin landed heads up 92 times and tails up 108 times. Which statement about this experiment is true?

A
The ratio 92 over 200 represents the number of occurrences of the coin landing heads up in this experiment.
B
The ratio 92 over 200 represents the number of trials in this experiment.
C
The ratio 92 over 200 represents the experimental probability of the coin landing heads up in this experiment.
D
The ratio 92 over 200 represents the theoretical probability of the coin landing heads up in this experiment.
5

Sanja made a hole-in-one on the sixth hole of miniature golf 8 times and missed it 4 times. If Sanja attempts 24 more holes-in-one, how many should she expect to make successfully?

A
Sanja should make 18 holes-in-one.
B
Sanja should make 20 holes-in-one.
C
Sanja should make 12 holes-in-one.
D
Sanja should make 16 holes-in-one.
6

A number cube was rolled as part of an experiment. The results are displayed in the given table. Number 1 2 3 4 5 6 Frequency 4 6 5 7 3 5 What is the best explanation of how to find the experimental probability of rolling a 3?

A
To find the experimental probability of rolling a three, write a ratio of the number of times three occurs to the total number of trials. Simplify if necessary.
B
To find the experimental probability of rolling a three, write a ratio of the total number of trials to the number three. Simplify if necessary.
C
To find the experimental probability of rolling a three, write a ratio of the number three to the total number of trials. Simplify if necessary.
D
To find the experimental probability of rolling a three, write a ratio of the total number of trials to the frequency of the number three. Simplify if necessary.
7

During an experiment, Juan rolled a six-sided number cube 18 times. The number two occurred four times. Juan claimed the experimental probability of rolling a two was approximately 1 ninth Which of the following is true about Juan’s claim?

A
Juan's claim is incorrect. The correct experimental probablilty is 2 ninths .
B
Juan’s claim is correct.
C
Juan's claim is incorrect. The correct experimental probablilty is 4 ninths .
D
Juan's claim is incorrect. The correct experimental probablilty is 1 third .
8

During an experiment, a spinner landed on green 9 times, which resulted in an experimental probability of 1 sixth Mary said that there must have been 45 trials in the experiment. Why is Mary incorrect?

A
If there were 9 occurrences and 45 trials, the simplified experimental probability would be 1 fifth , not 1 sixth .
B
Mary mistakenly thought that 1 sixth was the simplest form of 6 over 45 .
C
Mary multiplied the 9 occurrences by 6 instead of 5 .
D
If there were 9 occurrences, the simplified experimental probability would be 1 seventh , not 1 sixth .
10

Lonnie threw 50 free throws and missed 16 of them. If Lonnie throws 75 free throws, what can be predicted about the number she will make successfully?

A
Lonnie will make 59 free throws.
B
Lonnie will make 24 free throws.
C
Lonnie will make 66 free throws.
D
Lonnie will make 51 free throws.

Did you find these answers helpful?

Experimental Probability — Quiz Answers — Grade…