Question

The dot plot below shows the hourly rate of some babysitters in a city:

A number line is shown from 1 dollar to 7 dollars in increments of 1 dollar for each tick mark. The horizontal axis label is Dollars per hour. There are 3 dots above 4 dollars, 2 dots above 5 dollars, 4 dots above 6 dollars, and 1 dot above 7 dollars. The title of the line plot is Babysitting Rates.

Which statement best describes the shape of the data?

It is symmetric and has a peak at $7.00.
It is not symmetric and has a peak at $6.00.
It is a cluster from $1.00 to $7.00 and has gaps.
It is a cluster from $1.00 to $7.00 and has no gaps.

Answer 1

It is not symmetric and has a peak at $6.00

Explanation:

Drawn in text in a vertical fashion, we might show it as ...

4 | ooo

5 | oo

6 | oooo

7 | o

The data is clearly not symmetric, has a range from 4 to 7, and has a peak at 6. The appropriate description is ...

It is not symmetric and has a peak at $6.00