Question

Here are 10 test scores: 50, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these scores is 76. How does removing the outlier 50 affect the mean?

Answer 1

If you remove 50 from the data. Mean will obviously change because
Formula of mean =Sum of all the numbers/Total numbers..
If you remove 50 from the data. The total numbers will be 9 instead of 10. and mean will change, Geddit? @zharper12345678910

Answer 2

thanks u i'v been waiting for someone for an hour

Answer 3

The library design committee wants to know what people in the city think of a library design. Which sample of the population is least likely to show bias in a survey on this issue?

A.
every tenth person leaving a city senior center

B.
random people listed in the city phone book

C.
parents of children studying in the library

D.
students leaving a soccer game