CC1 Ch. 5 Review: Probability & Expressions (24-25)*

Front

What is probability?

Back

Probability is a measure of how likely an event is to occur, expressed as a number between 0 and 1, or as a percentage.

Front

What is the probability of spinning an even number on a spinner with numbers 1 to 6?

Back

50% (There are 3 even numbers: 2, 4, 6 out of 6 total numbers.)

Front

What is experimental probability?

Back

Experimental probability is the ratio of the number of times an event occurs to the total number of trials conducted.

Front

If Neil tossed a 6-sided die 90 times and rolled a 1 thirteen times, what is the experimental probability of rolling a 1?

Back

13/90

Front

What is the probability of flipping a coin and it landing on tails?

Back

1/2 or 50% (There are 2 outcomes: heads or tails.)

Front

How do you evaluate the expression 4y - 5 for y = 6?

Back

Substitute y with 6: 4(6) - 5 = 24 - 5 = 19.

Front

Evaluate the expression 3u + 8x for u = 7 and x = 2.

Back

3(7) + 8(2) = 21 + 16 = 37.

Front

What is a spinner in probability?

Back

A spinner is a circular object divided into sections, each representing a different outcome, used to demonstrate probability.

Front

What is the total number of outcomes when rolling a 6-sided die?

Back

6 (The outcomes are 1, 2, 3, 4, 5, and 6.)

Front

What does it mean if an event has a probability of 0?

Back

It means the event is impossible and will not occur.