The mean of a set of 6 integers is 30. When one of the numbers is removed, the new mean is 34. What was the number that was removed?

Given:

The mean of a set of 6 integers is 30.

If one of the numbers is removed, then the new mean is 34.

To find:

The removed number.

Solution:

The formula for mean is

The mean of a set of 6 integers is 30.

If one of the numbers is removed, then the mean of remaining 5 numbers is 34.

Now,

Removed number = Sum of 6 observations - Sum of 5 observations

                              = 180 - 170

                              = 10

Therefore, the removed number is 10.

(0,,,0)

step-by-step explanation:

the table of x and y values is shown in the attached pic(part of question)

we have to decide according that graph

given points are (0, 0) (–1, 0), (2, 0)

when we graph these points on graph they show an increasing line as shown in the attached pic