Statistical Measures Quiz

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What is the mean of 4, 6, 8, 10, 12?

a) 8 b) 6 c) 10 d) 40

What is the median of 3, 7, 2, 9, 5?

a) 5 b) 7 c) 3 d) 5.2

In the dataset 2, 3, 3, 4, 4, 4, 5, what is the mode?

a) 4 b) 3 c) 5 d) 3.5

What is the range of 12, 8, 15, 3, 11?

a) 12 b) 15 c) 3 d) 9.8

Which measure is most affected by extreme values?

a) Mean b) Median c) Mode d) Range

In a normal distribution, mean = median = ?

a) Mode b) Range c) Standard deviation d) Variance

What does the standard deviation measure?

a) Spread of data b) Central value c) Highest value d) Number of data points

If all values in a dataset are the same, the standard deviation is:

a) 0 b) 1 c) Equal to the mean d) Undefined

What is Q1 in a dataset?

a) 25th percentile b) 50th percentile c) 75th percentile d) First quartile only

The interquartile range (IQR) is:

a) Q3 - Q1 b) Q2 - Q1 c) Maximum - Minimum d) Q3 - Q2

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