Question

What is the mean of 20.0 20.5 21.10 21.5 22.0 22.0 22.5 22.5 23.0 23.0

Answer 1

The mean of the given set of numbers is calculated by adding them together and dividing by the number of observations, resulting in a mean of 21.81.

Step-by-step explanation:

To calculate the mean of a set of numbers, you need to add all the numbers together and then divide the sum by the total count of numbers. The mean, also known as the average, is a measure of central tendency that gives us an idea of the central point around which the numbers in a dataset are spread.

Let's take the provided set of numbers: 20.0, 20.5, 21.10, 21.5, 22.0, 22.0, 22.5, 22.5, 23.0, 23.0. First, we'll sum these numbers:

20.0 + 20.5 + 21.10 + 21.5 + 22.0 + 22.0 + 22.5 + 22.5 + 23.0 + 23.0 = 218.10

Next, we'll divide this sum by the count of numbers, which in this case is 10:

Mean = 218.10 / 10 = 21.81

Therefore, the mean of the numbers provided is 21.81.

Answer 2

Step-by-step explanation:

Step-by-step explanation:

Plotting the data roughly shows that the data is skewed to the left. In other words, data is skewed negatively and that the long tail will be on the negative side of the peak.

In such a scenario, interquartile range is normally the best measure to compare variations of data.

HOPED THIS HELPED. IF THIS IS NOT WHAT YOU ARE LOOKING FOR I CAN REDO THIS :D