Descriptive statistics

Define the term 'mode' in statistics.

• The average of all data points

• The most frequently occurring value

• The difference between the largest and smallest values

What is the 'median' in statistics?

• The average of all data points

• The middle value when the data is arranged in ascending order

• The most frequently occurring value

What is the significance of skewness in a distribution?

• It indicates the symmetry of the distribution

• It measures the spread of data points

• It shows the degree and direction of skew in the data

When skewness is positive, the distribution is called:

The histogram and frequency polygon are two different ways to represent the same dataset.

• TRUE

• FALSE

What is the median?

• 75

• 60

• 80

• 88

What value is the lower quartile (Q1)?

• 60

• 55

• 75

• 88

What value is the upper quartile (Q3)?

• 55

• 88

• 80

• 75

What does a box plot visually represent?

• The distribution of a dataset through its quartiles

• The average and standard deviation of a dataset

• The frequency of data points in each category

How is variance defined in statistics?

• The difference between the maximum and minimum values

• The most frequently occurring value in a dataset

• The average of the squared differences from the mean