FAST Descriptive Statistics 1

Question 1

What is the difference between the mean and the median?

Accepted Answer

The mean is the arithmetic average; the median is the middle value when data is ordered

Answer

They always produce the same result

Answer

The mean is always larger than the median

Answer

The median is calculated by adding all values

Question 2

What does standard deviation measure?

Accepted Answer

The average amount of variability or spread in a dataset

Answer

The center of the data distribution

Answer

The highest value in the dataset

Answer

The number of data points

Question 3

When is the median preferred over the mean?

Accepted Answer

When the data contains outliers or is heavily skewed

Answer

When all data values are identical

Answer

When working with nominal data

Answer

When the sample size is very large

Question 4

What is a frequency distribution?

Accepted Answer

A table or graph showing how often each value or range of values occurs

Answer

A measure of central tendency

Answer

A method for calculating standard deviation

Answer

A type of probability calculation

Question 5

What does a box plot display?

Accepted Answer

The minimum, first quartile, median, third quartile, and maximum of a dataset

Answer

Only the mean and standard deviation

Answer

The frequency of each data value

Answer

The correlation between two variables

Question 6

What is the mode of a dataset?

Accepted Answer

The value that appears most frequently

Answer

The average of all values

Answer

The middle value

Answer

The range of the data