Algebra 1 Unit 6 Review

Examine the box and whisker plots. Which company had the largest range of stocks sold?

• Company A

• Company B

• Company C

• None - the range is the same for all 3 companies.

Examine the box and whisker plots. Estimate the interquartile range for Company A

• 2000

• 1000

• 1500

• 4500

A set of data contains student test scores. Suppose the following is true:

* The first quartile score is 57

* The median score is 72

* The third quartile score is 81

Which statement about these grades must be TRUE?

• The lowest score must be 38

• The highest score must be 81

• 50% of the scores lie between 57 and 81

• The range of the scores is 100

The box and whisker plot shows the number of blueberry pies sold each day. Select ALL of the statements that are TRUE.

• 25% of the days, they sold 3 or less pies.

• 75% of the days they sold 3 or more pies.

• They sold at most 8 pies in a day.

• The median number of pies sold is 5.

The images shows the test scores for Jon and Jen. Select ALL that are TRUE.

• The range of Jon's scores is higher than the range of Jen's scores

• Jen's median score is higher than Jon's median score.

• Jen had a higher mean score than Jon.

• Their mean scores are the same.

You and your best friend Rob take the same 6 classes. You know Rob has a 93 in Spanish, 87 in English, and 79 in math. Rob would not tell you the other 3 scores for Music, Science, and PE. However, Rob gave you these hints: The mean is 89, the range is 18, and the median is 90. What are Rob's grades for the other 3 classes?

• 76, 83, and 94

• 83, 92, and 97

• 95, 83, and 97

• 80, 96, and 99

A bag of marbles contains 6 blue, 4 green, 5 yellow, and 10 red marbles. Suppose you reach in the bag and choose a marble. What is the probability the marble is red?

A bag of marbles contains 6 blue, 4 green, 5 yellow, and 10 red marbles. Suppose you reach in the bag and choose a marble. What is the probability the marble is green or yellow?

A bag of marbles contains 6 blue, 4 green, 5 yellow, and 10 red marbles. Suppose you reach in the bag and choose a marble. You put it back, then choose another marble. What is the probability that the first marble is blue and the second is yellow?

• Blue

• Green

• Yellow

• Red