Impact of Outliers in calculating Mean, Median and Mode

Q. Consider the data set: $16,14,15,19,14,18,12,14$

If 1 is included in the data set, what would be the effect on the median of the dataset?

1. Median will increase.
2. Median will decrease.
3. Median will be the same.

Q. Following is the data set for the number of states visited by students:
Number of States Visited by Students

31	12	0	11
13	7	4	2

Find the difference between the mean with outlier and the mean without outlier.

1. 3

Q. Miss Claire recorded the scores her students obtained in the last math quiz as follows:
65, 62, 67, 71, 71, 73, 95

What is the mean score without the outlier?

1. 62.1
2. 68.16
3. 73.15
4. 60

Q. The scores of a basketball game of 6 rounds have been recorded as shown.

Round	1	2	3	4	5	6
Score	3	3	4	3	5	12

Find the median of the scores with and without the outlier, respectively.

1. 3, 3
2. 3.5, 3
3. 3, 4
4. 3.5, 4

Q. In the dataset $:6,30,8,6,10,16,12,30,3$.
Mode with outlier is mode without outlier.

1. same as
2. different from
3. smaller than

Q. Stan, Stacey, are Tonny were having an argument about outliers.

Stan: Mean is most affected by an outlier.
Stacey: Mode is most affected by an outlier.
Tonny: Median is most affected by an outlier.

Who is correct?

1. Stacey
2. Tonny
3. Stan
4. Both Stacey and Tonny

Q. The following table gives an account of the number of pretzels Luna's store sold in a week.
Lenny says that the mean number of pretzels sold will lie between 30 and 35. Bonnie says that it will be greater than 35 but less than 40.
Troy says that it will be less than 30.
Who is correct?

1. Troy
2. Bonnie
3. None of the above
4. Lenny