Statistics and Probability Chapter Review (6+)

Find the measures of center for the given data of hours Ladena spent sleeping each night for 12 nights. Calculate the mean, median, and mode. Round to the nearest tenth.

• Mean: 7.7

  Mode: 8

  Median: 8

• Mode 8:

  Median: 8

  Mean: 8

• Mean: 7.6

  Mode: 8

  Median: 8

Refer to the dot plot titled "Cookie Dough Tubs Sold per Student" and find the measures of center for the given data. Calculate the mean, median, and mode.

• Mean: 8.2

  Median: 8

  Mode: 8

• Mean: 8.2

  Median: 9

  Mode: 9

• Mean: 9

  Median: 8.2

  Mode: 9

Using the table titled "Dress Costs ($)", calculate the mean of the data. Round to the nearest tenth.

Mathematical Equivalence

ON

What is the mean cost without the outlier? Round to the nearest cent if necessary.

Mathematical Equivalence

ON

Use the data of test grades shown in the table to find the measures of variation. Provide the Range, 3rd Quartile, Median, IQR, 1st Quartile, and Outliers.

• None

• Range

• 11.5

• 1st Quartile and 3rd Quartile

• 9 and 15

• Median

• 22

• Outliers

• 6

• IQR

Which statement explains why it is reasonable to infer which doctor has the greater variability in weekly patients?

• a. Dr. Gupta; the range is greater.

• b. Dr. Lind; the interquartile range is greater.

• c. Dr. Gupta; the median is greater.

• d. Dr. Lind; the first quartile is greater.

Bailey tossed a coin 20 times. The results were 12 heads and 8 tails. What is the experimental probability of tossing tails?

Bailey tossed a coin 20 times. The results were 12 heads and 8 tails. Which statement accurately compares the theoretical and experimental probability of tossing tails?

• theoretical > experimental

• theoretical < experimental

• theoretical = experimental

A jar contains 1 blue marble, 11 yellow marbles, and 8 green marbles. What is the probability of randomly choosing a blue marble, replacing it, and then choosing a blue marble again?

HINT: Use the Fundamental Counting Principal.

Taj has a choice of water, iced tea, or lemonade; with lemon or lime twist; served in a small or large glass. How many more choices will he have if the drink can be served with or without a straw? Explain.