Statistics

What is the arithmetic mean of the first five natural numbers?

In a pie chart, if a component represents 20% of the total data, what is its central angle?

Find the median of the data set: 12, 15, 7, 19, 10, 22, 14.

What is the mode of the following data: 5, 8, 5, 3, 2, 5, 8, 4, 1?

The range of the data 25, 18, 32, 45, 12, 50 is:

If the mean of 5 observations is 20, what is the sum of those observations?

Which of the following is a measure of central tendency?

In a bar graph, the height of the bars represents:

What is the mid-value (class mark) of the class interval 20 - 30?

In a pie chart, the sum of all central angles is always:

Find the mean of the first five prime numbers.

If the values are 2, 2, 3, 3, 3, 4, 4, 4, 4, then the mode is:

The median of a set of 10 observations is the average of which two terms when arranged in order?

What is the formula for the class mark of a class interval?

If the mean of x, x+2, x+4 is 12, what is the value of x?

In a frequency distribution, the sum of frequencies is denoted by:

The mean of 10 items was found to be 15. If each item is increased by 2, what is the new mean?

Calculate the mean of the squares of the first three natural numbers.

A cumulative frequency curve is also known as:

What is the lower quartile (Q1) of the data: 2, 4, 6, 8, 10, 12, 14?