Major helpshow work72,74,75,76,79,80,85

Answer: It appears that you may be looking for assistance with a statistical concept called finding the mean (average) of a set of numbers. To calculate the mean of the numbers you've provided (72, 74, 75, 76, 79, 80, 85), you need to follow these steps:

Step 1: Sum up all the numbers. That is, add them all together. 72 + 74 + 75 + 76 + 79 + 80 + 85 = 541

Step 2: Count how many numbers there are in the set. In your case, there are 7 numbers.

Step 3: Divide the sum of numbers by the count to find the mean. Mean = 541 ÷ 7 ≈ 77.286

Therefore, the mean (average) of the numbers you've given is approximately 77.286.

Extra: The mean is a measure of central tendency, which is a way to describe the center of a data set. Central tendency can be measured by three main statistics: the mean, the median, and the mode.

The mean is the arithmetic average and is calculated by adding all the numbers in a data set and then dividing by the number of values in the set. The mean is useful for sets of numbers without extreme values (outliers), as outliers can significantly skew the mean.

The median, on the other hand, is the middle value of a data set when the numbers are arranged in order. If there is an even number of observations, the median is the average of the two middle numbers.

The mode is the number that appears most frequently in a data set. A set of numbers may have one mode, more than one mode, or no mode at all if all numbers appear with the same frequency.

When analyzing data, it is important to consider which measure of central tendency is most appropriate for your data set. If you're dealing with skewed data or outliers, the median may be a better measure of the center than the mean. Understanding these concepts is essential for interpreting the data correctly and making informed decisions based on that data.