Statistics Quiz

What is the mean of the following data set: 5, 7, 9, 11, 13?

• 13

• 7

• 11

• 9

Calculate the median of the data set: 2, 4, 6, 8, 10, 12, 14.

• 12

• 10

• 4

• 8

Find the mode of the data set: 3, 5, 7, 5, 9, 3, 7, 5.

• 9

• 5

• 7

• 3

Which measure of central tendency is affected by outliers?

• Mean

• Mode

• Median

• Range

What is the range of the data set: 10, 15, 20, 25, 30?

• 20

• 15

• 5

• 10

What is the interquartile range of the data set: 4, 6, 8, 10, 12, 14, 16?

• 8

• 6

• 4

• 2

What is the standard deviation of the data set: 2, 4, 6, 8, 10?

• 2.8284

• 5.6569

• 1.4142

• 3.1623

Which type of graph is used to represent categorical data?

• Bar graph or Pie chart

• Histogram

• Line graph

• Scatter plot

What is the purpose of a box plot?

• The purpose of a box plot is to display the distribution of a dataset and identify outliers.

• The purpose of a box plot is to compare two datasets.

• The purpose of a box plot is to show the mean and median of a dataset.

• The purpose of a box plot is to display the relationship between two variables.

What is the difference between a histogram and a bar graph?

• A histogram represents discrete data distribution, while a bar graph compares continuous categories.

• A histogram is used for qualitative data, while a bar graph is used for quantitative data.

• A histogram and a bar graph are the same thing.

• A histogram represents continuous data distribution, while a bar graph compares discrete categories.