Statistics and Data Review

Class B has a higher median number of siblings.

Class A has a greater variability in the number of siblings.

Both Class A and Class B have students who are only children.

Over half of the students in Class A have two or more siblings.

Both Jamal's and Kendall's racecars had an equal spread in their data.

On average, Kendall's racecar traveled further.

The median distance Jamal's racecar traveled was 6.5 ft.

Both Jamal and Kendall had the same mode of data.

The scores in Mrs. Ruiz's class have less variability than the scores in Mrs. Moore's class.

The median of Mrs. Moore's class is equal to the first quartile of Mrs. Ruiz's class.

The interquartile range of both classes is equal.

The scores in Mrs. Moore's class have a greater spread than the scores in Mrs. Ruiz's class.

7

11

4

3

As study time decreases, test scores increase.

As study time increases, test scores decrease.

As study time increases, test scores increase.

There is no relationship between study time and test scores.

Over half of the iguanas measure 14 centimeters or more in length.

25% of the iguanas measure 12 centimeters in length.

The number of iguanas that measure 15 centimeters or more is equal to the number that measure 11 centimeters or less.

8th graders wanted to go to the zoo more than 7th graders wanted to go to the museum.

More 8th graders than 7th graders want to go to the sports complex.

7th and 8th graders preferred going to the zoo over the museum and sports complex.

More 8th graders wanted to go to the museum or sports complex than 7th graders wanted to go to the zoo or sports complex.

Skewed left

Skewed right

Symmetric

Uniform

Exactly 42% of the library patrons chose mystery.

Non-fiction and science fiction represents over half of the selections.

Over 25% of the library patrons chose a science fiction book.

136 total patrons can be expected to choose a non-fiction book.