Descriptive Statistics

Question 1

Measures of central tendency

Answer 1

Mean
Median
Mode

Question 2

Measures of dispersion

Answer 2

Range
Standard deviation

Question 3

When do you use the measure of central tendencies?

Answer 3

No extreme scores= mode
Extreme scores= median
Categories=mode

Question 4

Mean

Answer 4

+ most sensitive and uses all scores
- distorted by outliers

Question 5

Mode

Answer 5

+easy to calculate/ no outliers
- not representative- doesn’t consider all scores

Question 6

Median

Answer 6

+ easy to calculate/ no outliers
- less sensitive/ doesn’t use all scores

Question 7

Range

Answer 7

+ easy to calculate
- outliers

Question 8

What does a high standard deviation mean?

Answer 8

Values are spread out away from the mean
Not everyone responded the same way

Question 9

What does low standard deviation mean?

Answer 9

Data is clustered around the mean and ptsps responded in a similar way

Question 10

What are descriptive statistics

Answer 10

Stats that describe summaries of a data set