Question

Use a calculator to find the mean and standard deviation of the data. Round to the nearest tenth.
20, 16, 18, 9, 20, 16

Answer 1

The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count. Negative Numbers.

Answer 2

Do you think you can do that ?

Answer 3

Oh yeah i can do that haha :)

Answer 4

good luck ! :)

Answer 5

How do you find the standard deviation ?

Answer 6

says use a calculator right?
http://www.wolframalpha.com/input/?i=standard+deviation+20%2C+16%2C+18%2C+9%2C+20%2C+16+

Answer 7

omg the calculator is wrong!?

Answer 8

Lol cx i think my answer choices are messed up :P