Percents And Probability Worksheet With Answers - Lesson 12-19 Page 17
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4914.
Sixty out of 800 people interviewed prefer romantic comedy movies. Find the probability that a person
chosen at random prefers romantic comedies.
15.
Aft er fl ipping a coin 60 times, Mary’s coin landed heads 5 times. Is it a fair coin? Explain.
16.
Alvin took a group hiking on a trail in the Columbia Gorge.
Th e group hiked 3.2 miles in the fi rst two hours. Th ey hiked
for fi ve more hours at the same rate. How far did they hike in
fi ve hours?
17.
Sally drank 60 ounces of water in 8 hours. If she continued
drinking water at this rate, how much water would she drink
in 15 hours?
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i Ag r A m s
Tanya packed her lunch in the morning. She had three choices for her
sandwich: PBJ, ham or turkey. She can choose between two types of
fruit: apple or banana. She also has the choice of either an oatmeal or
chocolate cookie.
Outcomes can include more than one event. Tanya wants to determine how many diff erent possibilities
she could create for lunch. She made a tree diagram to illustrate the possible outcomes.
Oatmeal
Apple
Chocolate
Possible outcomes
PBJ
Oatmeal
PBJ, Apple, Oatmeal
Banana
PBJ, Apple, Chocolate
Chocolate
PBJ, Banana, Oatmeal
Oatmeal
Apple
PBJ, Banana, Chocolate
Chocolate
Ham, Apple, Oatmeal
Ham
Ham, Apple, Chocolate
Oatmeal
Ham, Banana, Oatmeal
Banana
Ham, Banana, Chocolate
Chocolate
Oatmeal
Turkey, Apple, Oatmeal
Apple
Turkey, Apple, Chocolate
Chocolate
Turkey, Banana, Oatmeal
Turkey
Turkey, Banana, Chocolate
Oatmeal
Banana
Chocolate
Create a poster with a tree diagram for the situation below. List all possible outcomes.
Putting an outfi t together
Choose one top: t-shirt, sweater or tank top.
Choose one type of bottoms: shorts, jeans or slacks.
Choose one pair of shoes: sandals or tennis shoes.
87
Lesson 14 ~ Use Probability To Predict
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