Question

Find the mean for the following list of values: 13, 18, 13, 14, 13, 16, 14, 21, 13

Answer 1

Answer:

OBSERVATIONS:- 13,18,13,14,13,16,14,21 AND 13

FORMULA OF MEAN = SUM OF OBSERVATIONS

                                        NO. OF OBSERVATIONS

                                    =13+18+13+14+13+16+14+21+13 / 9

                                    = 135/9

                                    =15  

HENCE 15 IS THE MEAN.

PLZ MARK AS BRAINLIEST ANSWER!

                                         

Step-by-step explanation:

Answer 2

Given,

The list of observations = 13, 18, 13, 14, 13, 16, 14, 21, 13

To find,

The mean for the given observations.

Solution,

The mean of 13, 18, 13, 14, 13, 16, 14, 21, 13

will be 15.

We can easily solve this problem by following the given steps.

We have

13, 18, 13, 14, 13, 16, 14, 21, 13

We know that the mean is found using the following formula:

Mean = Sum of all the observations/total number of observations

Mean = (13+18+13+14+13+16+14+21+13)/9

Mean = 135/9

Mean = 15

(More to know: this is the simplest method to find the mean. Some of the other methods to find the mean are the direct method, the step deviation and the assumed mean method.)

Hence, the mean of 13, 18, 13, 14, 13, 16, 14, 21, 13 is 15.