Data Statistics and Probability

A ​ (a)   is a graphical display of data using dots.

A ​ (b)   is a graphical display where the data is grouped into ranges.

• dot plot

• histogram

• box plot

• frequency table

• scatter plot

The (a)   is the difference between the lowest and highest values.

• range

• mean

• median

• mode

The (a)   is the number which appears most often in a set of numbers.

• mode

• range

• median

• mean

The (a)   is the average of the numbers.

• mean

• mode

• range

• median

The ___ is the middle number (in a sorted list of numbers).

Choose from the following: mean // median // mode // range

How many employees are there that make between $33,000 and $43,000

• 250

• 500

• 550

• 750

Elliot says almost everyone arrived at the party after 10:00 P.M., but Nancy thinks most people came earlier. When did a majority of the people arrive?

• 7:00-7:59 P.M.

• 8:00–8:59 P.M.

• 9:00–9:59 P.M.

• 10:00–10:59 P.M. 

What is incorrect about the following histogram?

• The intervals are too small

• The intervals overlap

• The graph does not start at 0

• The axes are not labeled.

Mr. Semo is making a histogram to show the scores on the last science test. He first lists the scores in a stem-and-leaf plot. How many units tall should the bar be for the interval 70-79?

• 2

• 5

• 9

• 11

Raul measured the heights of the apple trees in an orchard.
What percent of the trees are 5-9 feet tall?

• 18.9%

• 31%

• 22.1%

• 10%