# Mean

## Everything You Need in One PlaceHomework problems? Exam preparation? Trying to grasp a concept or just brushing up the basics? Our extensive help & practice library have got you covered. | ## Learn and Practice With EaseOur proven video lessons ease you through problems quickly, and you get tonnes of friendly practice on questions that trip students up on tests and finals. | ## Instant and Unlimited HelpOur personalized learning platform enables you to instantly find the exact walkthrough to your specific type of question. Activate unlimited help now! |

#### Make math click 🤔 and get better grades! 💯Join for Free

##### Intros

##### Examples

###### Lessons

- Calculate the mean of each set of data. Round your answer to the nearest tenth.
- A survey collected information about the total amount of time teens spent on computers each week. Only data from four cities is listed below.

Cities

Computer time (hours per week)

A

15.3

B

17.5

C

12.4

D

13.9

- Harry was given the following marks on his English essays:

69%, 71%, 85%, 80%, 93%, 99%- Calculate his mean mark? Round your answer to the nearest whole percent.
- What mark would he need to receive on the next essay to increase his mean by 2 percent for the seven essays?
- Harry's friend, Thomas, received the following marks on his English essays:

96%, 74%, 75%, 66%, 96%, 90%

What is Thomas's mean mark? Round your answer to the nearest whole percent. - Who has a smaller mean absolute deviation? Harry or Thomas? What does this tell you?