Answers to Experimental Probability Practice
On a science quiz, David got 45 out of 70 items correct. What is the empirical probability of his incorrect responses? Write your answer in the simplest form of a fraction.
A: 5/14
Hazel has 15 T-shirts and 10 short-sleeve blouses in her wardrobe. What is the relative frequency of her T-shirts? Write your answer in decimal form.
A: 0.6
Use the table to answer the question.
Colors Where the Spinner Stopped Frequency
blue 20
red 15
green 45
yellow 10
black 15
white 45
Total 150
A color wheel with six equal sections, blue, red, green, yellow, black, and white, was spun 150 times. The results are summarized in the table.
What is the experimental probability of landing on white? Express your answer in percent form.
A: 30%
A six-sided number cube is to be rolled 30 times. How many times do you expect to roll on an even number?
A: 15 times
Use the table to answer the question.
Type of Movie Number of Visitors
Comedy 12
Action 5
Drama 3
Horror 0
Mystery 18
Thriller 7
Romance 5
A theater owner took a survey of the types of movies their visitors like. Predict how many visitors would like a comedy if they surveyed 1,275 students.
A: 306
nppp!
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