Calculate the standard deviation for the sample weights (in grams):

62.3, 74.1, 51.8, 23.5, 25.2, 40.9, and 93.2

A) 25.62

B) 25.09

C) 24.98

D) 24.37

The data set shows the prices (in dollars) of lacrosse helmets. Make a box-and-whisker plot that represents the data. Describe the distribution:

125, 120, 250, 110, 190, 220, 145, 260, 240, 150, 170, and 200

A)

B)

C)

D)

Use a Venn diagram to represent the sets of factors of 12, even numbers, and numbers less than 13. Then determine which numbers belong to each set. Based on your diagram, decide whether the statement “The only positive factors of 12 that are less than 13 and not even are 1 and 3” is true or false. Explain your reasoning.

A) False, because 1, 3, and 5 are all odd factors of 12.

B) False, because 3 and 9 are the only factors of 12 that are not even.

C) True, because 1 and 3 are the only factors of 12 that are odd and less than 13.

D) True, because all factors of 12 are even numbers.

Use the line graph to answer each question. In which month(s) was Linda’s account balance $150?

A) January and May

B) June and July

C) October and December

D) May and October

The frequency table shows the chemistry exam scores for a class. Display the data in a histogram. Describe the distribution.

A) 3

B) 0

C) 5

D) 7