Statistics Questions

Scientific: https://www.desmos.com/testing/northcarolina/scientific Graphing: https://www.desmos.com/testing/northcarolina/graphing

• A

• B

• C

• D

The number of dogs owned by families in a particular neighborhood are: 4, 3, 7, 1, 5, 1, 2, 9, 0, 3. What is the mean number of dogs owned?

• 3.5

• 4.0

• 2.5

• 5.0

The number of dogs owned by families in a particular neighborhood are: 4, 3, 7, 1, 5, 1, 2, 9, 0, 3. What is the median number of dogs owned?

• 3

• 4

• 5

• 2

Below are the ages of students attending an art exhibit. Find the standard deviation for the data. 11, 11, 12, 12, 13, 13, 13, 13, 14, 14, 15, 15, 15, 15, 16, 16, 17, 17, 18

• 1.98

• 2.50

• 3.00

• 1.50

Given the histogram for wait times at a local medical office shown below, would you use median and quartiles or the mean and standard deviation to describe the spread of the data?

• Median and quartiles

• Mean and standard deviation

Which statement is true about the histogram?

• The histogram has an outlier between 8 and 9.

• The histogram is skewed to the right.

• The histogram is symmetric.

• The histogram has a gap between 8 and 9.

Which of the following statements about measures of the center of a distribution of data is true?

• The mean is strongly affected by an outlier in the data, but the median is not.

• The median is strongly affected by an outlier in the data, but the mean is not.

• Neither the mean nor the median is strongly affected by an outlier in the data.

• Both the mean and the median are affected by the outlier in the data.

Describe the histogram using the SUCS acronym.

• Shape, Unusual features, Center, Spread

• Size, Uniformity, Color, Symmetry

• Scale, Units, Clarity, Simplicity

• Source, Usage, Context, Summary

What is the IQR on this box plot?

• 0.76

• 0.48

• 2.1

• 1.83

The box plot for Year 7 was based on data collected from 76 students in Year 7.
Estimate the number of these Year 7 students with a reaction time less than 2.10 seconds.

• 19

• 57

• 65

• 76