What is the main purpose of a bar graph?

• To show the relationship between two variables

• To display continuous data

• To represent data in intervals

• To compare different categories of data

In a pie chart, the size of each slice is proportional to:

• The frequency of the data category

• The mean of the data

• The variance of the data

• The median of the data

Which of the following is NOT a feature of a bar graph?

• The bars are always arranged in ascending order.

• The bars are of equal width.

• The bars are separated by gaps.

• The height of each bar corresponds to the frequency of data.

A histogram is used to represent:

• Discrete data

• Continuous data

• Categorical data

• Both discrete and categorical data

The bars in a histogram:

• Do not touch each other

• Are of unequal widths

• Touch each other to indicate the continuity of the data

• Represent the mode of the data

Which of the following is true about a frequency polygon?

• It is a graph of the cumulative frequency

• It connects the midpoints of the top of the bars of a histogram

• It represents categorical data

• It is used to compare two datasets

What does the 'Less Than Ogive' curve represent?

• Cumulative frequency distribution

• The mean of the data

• The median of the data

• The variance of the data

Which of the following is correct about the 'Less Than Ogive'?

• It shows the cumulative frequency of data points less than or equal to a given value.

• It represents the mode of the data.

• It shows the distribution of the data across various classes.

• It is the same as a bar graph.

What is the mode of the following dataset: 2, 4, 4, 5, 7, 7, 7, 8?

• 5

• 7

• 4

• 2

What is a disadvantage of the arithmetic mean?

• It is sensitive to extreme values (outliers).

• It cannot be used for continuous data.

• It does not give a central value of the dataset.

• It is difficult to calculate.