Statistics Basics MCQ Quiz

Which of the following is a measure of central tendency?

• Mean

• Variance

• Standard Deviation

• Range

What is the median of the dataset: 3, 7, 9, 15, 17?

• 7

• 9

• 15

• 17

What is the mode of the following dataset: 4, 8, 4, 6, 9, 4, 7, 6?

• 4

• 6

• 7

• 8

Which of the following measures the spread of data?

• Median

• Mode

• Range

• Mean

The probability of an event is always between which two values?

• 0 and 1

• 0 and 100

• -1 and 1

• -∞ and ∞

Which of the following distributions is symmetric and bell-shaped?

• Normal distribution

• Binomial distribution

• Poisson distribution

• Exponential distribution

What does the standard deviation measure?

• The central value of the dataset

• The spread of the data around the mean

• The maximum value in the dataset

• The difference between the highest and lowest values

Which of the following is true about a positively skewed distribution?

• The mean is greater than the median

• The mean is less than the median

• The mean is equal to the median

• The distribution has no mode

Which of the following is a measure of variability?

• Mean

• Median

• Mode

• Variance

If the mean of a dataset is 50 and the standard deviation is 5, what is the z-score of the value 60?

• 1

• 2

• -1

• 10