Untitled LesTheoretical and Experimental Probability

Theoretical and Experimental Probability

Grade 7 Mathematics

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Fill in the Blanks

What is the theoretical probability of the spinner landing on B or D? (fraction)

Fill in the Blanks

If the spinner is spun 240 times, how many times do you predict it will land on B or D?

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LO:SWBAT make predictions and determine
solutions using theoretical probability for
simple and compound events.

DOL: Given a set of problems, students will
correctly make predictions and determine
solutions using theoretical probability for
simple and compound events in at least 4 of 5 questions.

MATH.7.6D: Make predictions and determine solutions using theoretical probability for simple and compound events.

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Lesson Vocabulary

Theoretical Probability

Math Response

The concessions stand at the basketball game offers two beverages: water and sports drinks.

What is the theoretical probability that a customer will
purchase water?

(fraction)

Type answer here

Correct Answer: \frac{1}{2}

Deg^°

Rad

Math Response

The concessions stand at the basketball game offers two beverages: water and sports drinks.

What is the theoretical probability that a customer will
purchase a sports drink?

(fraction)

Type answer here

Correct Answer: \frac{1}{2}

Deg^°

Rad

Math Response

The concessions stand at the basketball game offers two beverages: water and sports drinks.

The concession stand serves 122 customers, how many do
you predict would choose water as a beverage?

Type answer here

Correct Answer: 61

Deg^°

Rad

Math Response

The concessions stand at the basketball game offers two beverages: water and sports drinks.

The concession stand serves 122 customers, how many do
you predict would choose sports drink as a beverage?

Type answer here

Correct Answer: 61

Deg^°

Rad

Multiple Select

Jacob has a bag that contains chocolate candy and fruit flavored candy. The theoretical probability that he randomly selects a chocolate is the same as the theoretical probability that he will select a fruit-flavored candy. Which of the following CANNOT be the contents of the box? Select all that apply.

• 7 chocolates and 7 pieces of fruit-flavored candy

• 14 chocolates and 7 pieces of fruit-flavored candy

• 15 chocolates and 30 pieces of fruit-flavored candy

• 12 chocolates and 24 pieces of fruit-flavored candy

• 10 chocolates and 10 pieces of fruit-flavored candy

Multiple Choice

How many times do you predict Ashley will randomly select
a blue marble out of 280 trials?

*remember the theoretical probability of selecting a blue
marble is 3/20.*

• 15

• 27

• 42

• 9

Math Response

How many times do you predict Ashley will randomly select
a red marble out of 280 trials?

*remember the theoretical probability of selecting a red
marble is 1/4.*

Type answer here

Correct Answer: 70

Deg^°

Rad