2
practice testMultiple Choice

Practice Test

Question 2 • Grade 7 Mathematics

Which statements about experimental probability are true? Choose three correct answers.

Answer
A
An experiment to determine probability will include a number of trials.
B
Experimental probability has the total number of trials in the numerator and the number of times an event occurs in the denominator.
C
A probability experiment will count the number of times an event occurs.
D
Experimental probability is the same as theoretical probability.
E
Experimental probability can be written in the form of a ratio.

Explanation

An experiment uses repeated trials and records how many times the event occurs. Experimental probability is the number of times the event occurs divided by the total number of trials, so it can be written as a ratio. Choice B reverses the numerator and denominator, and experimental probability is not always the same as theoretical probability.

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