Review

Front

What is the lower boundary in a data set?

Back

The lower boundary is found by subtracting 0.5 from the lower limit of the data set.

Front

How do you determine the number of employees with a salary below a certain amount?

Back

Count the number of employees whose salaries are less than the specified amount.

Front

What is the third quartile (Q3) in a data set?

Back

The third quartile is the value that separates the highest 25% of the data from the rest.

Front

What does N represent in frequency distribution?

Back

N refers to the sum of the frequencies in a data set.

Front

How do you calculate cumulative frequency?

Back

Cumulative frequency is calculated by adding the frequency of each class to the sum of the frequencies of all previous classes.

Front

What is the purpose of arranging data in ascending order?

Back

Arranging data in ascending order helps in identifying medians, quartiles, and other statistical measures.

Front

What is a frequency distribution?

Back

A frequency distribution is a summary of how often each value occurs in a data set.

Front

How do you find the median of a data set?

Back

The median is the middle value when the data set is arranged in ascending order.

Front

What is the difference between lower limit and upper limit in a class interval?

Back

The lower limit is the smallest value in the interval, while the upper limit is the largest value.

Front

What is a quartile?

Back

A quartile is a type of quantile that divides a data set into four equal parts.