Statistics 1

Question 1

Find mean

Answer 1

Avg.=Sum of #s/# of #s in the dataset

Question 2

Find median if the # of #s in the dataset is even

Answer 2

1. Arrange the dataset in chronological order
2. Divide the # of #s by 2
3. Round up step 2
4. Take the mean of the values in the positions of step 2 and step 3=median

Question 3

Find median if the # of #s in the dataset is odd

Answer 3

1. Arrange the dataset in chronological order
2. Divide the # of #s by 2
3. Round up=median

Question 4

Define mode

Answer 4

The # that shows up the most often in a dataset

Question 5

Define range

Answer 5

The difference between the largest and the smallest #

Question 6

Define standard deviation

Answer 6

How much a dataset deviates from the mean

Question 7

Define outlier

Answer 7

A data point that lies that is extremely isolated in relation to other data points