Pre-Algebra SOL 8.11, 8.12, and 8.13 SOL Prep

Pre-Algebra SOL

8.11, 8.12, and 8.13 SOL Prep

Multiple Choice

A bag contains five red, three green, and two blue marbles.

Which of the following events has the greatest likelihood of occurring?

• Event #1: A red marble is selected, not returned to the bag, and another red marble is selected

• Event #2: A green marble is chose, replaced, and then a blue marble is chosen.

• Event #3: A blue marble is picked, put back in the bag, and then a red marble is picked.

• All are equally likely

Multiple Choice

Which of the following situations describes two independent events?

• Choosing seven numbers from 0-9, which cannot be repeated

• Tossing a coin and rolling a die

• Pulling two pieces of candy from a bag, one at a time

• Drawing one card from a deck, then drawing a second without replacement

Fill in the Blanks

Joquan has a bag with marbles that are the same size and shape. He will randomly select 2 marbles from the bag with no replacement.

What is the probability he will select a red marble and then NOT a green marble?

Multiple Choice

What is the lower quartile of the data?

• 70

• 75

• 90

• 55

Multiple Choice

The boxplot represents the weights of the students in Mrs. Hawker's class. According to the box and whisker plot, what is the range of the students' weights?

• 50 pounds

• 60 pounds

• 70 pounds

• 95 pounds

Fill in the Blanks

The box and whisker plot shows the heights in inches of tomatoes grown in pots compared to tomatoes grown in the garden.

Using the median as the measure, which is closest to the difference in heights between the potted tomatoes and the garden tomatoes?

Multiple Choice

Based on the data in the graph below, which of the following statements best describes the relationship between the hours spent watching TV and grades earned?

• As the number of hours spent watching TV decreases, the grade earned decreases

• As the number of hours spent watching TV increases, the grade earned decreases

• As the number of hours spent watching TV increases, the grade earned increases

• There is no relationship between the number of hours spent watching TV and grades earned

Multiple Select

Which of the statements would represent a positive correlation?

• A person's age and his house number

• The hours worked and the amount of money earned

• The temperature outside and the sale of ice cream

• The temperature outside and the sale of hot chocolate

• A child's age and her height

Multiple Choice

This scatterplot compares students' quiz averages with their final exam scores.

Which is the best estimate of a final exam score for a student who has a quiz average of 85?

• 55

• 60

• 75

• 95