Question

Here are 10 test scores: 30, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these scores is 74. Does this set have an outlier and, if so, how does removing it affect the mean?


A.


This data set has no outliers.


B.
The set has 30 as an outlier and removing it decreases the mean by about 5.


C.
The set has 30 as an outlier and removing it decreases the mean by about 10.


D.
The set has 30 as an outlier and removing it increases the mean by about 5.

Answer 1

@haleyelizabeth2017

Answer 2

oh lol

Answer 3

haha so what we need to do to determine if there is an outlier, you need to find the average of the 10 scores.

Answer 4

74?

Answer 5

There is no outlier lol

Answer 6

30

Answer 7

no because it is only too much by .4 and they probably rounded

Answer 8

and the answer is d because without thirty the average would be 78.8

Answer 9

I'm confused.....I added them all together to get 744 and then when I divided by 10 I got 74.4 so that doesn't work

Answer 10

i got 74

Answer 11

with 30

Answer 12

and without it it increases the mean by 5

Answer 13

i was right lol

Answer 14

If x can be any number, how many solutions are there for the equation?



y = 3x – 1



A.
There is only one solution because all equations have one solution.


B.
There is no solution because there are no values for the variables that make the equation true.


C.


There are many solutions because there are many values for the variables that make the equation true.


D.
There are two solutions because there are two variables in the equation.

Answer 15

I am not able to process math right now lol sorry!

Answer 16

the equation is y=3x-1

Answer 17

oh ok

Answer 18

thx anyways lol

Answer 19

:) sorry!