Chapter 5 Flashcard Review

Front

What percent of seats are empty if a movie theater has 250 seats and 225 seats are sold?

Back

10%

Front

What is P(not A) if P(A) = 1/4?

Back

3/4

Front

What proportional equation would you use to find the missing pieces of a percent problem using the words 'OF and IS'?

Back

(IS / OF) = (percent / 100)

Front

What is the experimental probability of rolling a 1 or 6 if a die is rolled 14 times and the result is 6 times?

Back

3/7

Front

What is 90% of 250?

Back

225

Front

How do you calculate the percentage of empty seats in a theater?

Back

(Number of empty seats / Total seats) x 100

Front

What is the formula for finding the probability of an event?

Back

P(Event) = Number of favorable outcomes / Total number of outcomes

Front

If a die is rolled 6 times and a 1 is rolled once, what is the experimental probability of rolling a 1?

Back

1/6

Front

What does it mean if P(A) = 1/4?

Back

There is a 25% chance of event A occurring.

Front

How do you convert a fraction to a percentage?

Back

(Numerator / Denominator) x 100