CC1 Chapter 4 Review (24-25)

Front

Convert 12.7% to a decimal.

Back

.127

Front

What is P(giraffe)? Give your answer as a decimal.

Back

0.24

Front

If 48 teachers prefer certain social media platforms, predict how many would prefer Facebook if 480 teachers were surveyed, given that 40% prefer Facebook.

Back

200 teachers

Front

Back

0.25

Front

What is the experimental probability of landing on a 5 if a spinner is spun 200 times and lands on 5 a total of 40 times?

Back

0.2

Front

Define 'percentage'.

Back

A percentage is a fraction expressed as a part of 100.

Front

What is the formula to convert a fraction to a decimal?

Back

Divide the numerator by the denominator.

Front

Explain what experimental probability is.

Back

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

Front

What does it mean to predict outcomes based on a sample?

Back

It means to estimate the results for a larger group based on the data collected from a smaller group.

Front

How do you convert a decimal to a percentage?

Back

Multiply the decimal by 100 and add a percent sign.