Hi I need help with math the lesson is called average

Question

The ages of a group of people are given in the table below. Find the median age of the group.

The table below shows a student's quiz scores on six quizzes.

Find this student's median quiz score. Do not round your answer.

The graph below shows natural gas consumption for 2012.

Use the bar graph above to answer the following questions:

a) What is the mean natural gas usage for the year? If necessary, round your answer to the nearest whole number.

b) How many months had natural gas usage above the average?

c) What is the median natural gas usage for the year? If necessary, round to the nearest whole number.

d) How many months had natural gas usage above the median?

Answer months

Are the mean and median fairly close to each other?

Answer 1

12, 17, 8, 15, 20, 10

rearrange the numbers in order

8, 10, 12, 15, 17, 20

the median is the middle number, but when there is no single middle number

take the average of the two middle numbers (12+15)/2 = 27/2 = 13.5 = 13 1/2

the median quiz score is 13 1/2

the median is the average of the two middle numbers

the mean is the average of all 6 numbers = 82/6 = 13 2/3