Data Analysis- descriptive statistics

Question 1

what are measures of central tendency

Answer 1

averages which give us information about the most typical values in the set of data

Question 2

what are the measures of central tendency

Answer 2

mean, median and mode

Question 3

what are measures of dispersion

Answer 3

based on the spread of scores- it shows how scores vary and differ from one another

Question 4

what are the measures of dispersion

Answer 4

range and standard deviation

Question 5

what is mean

Answer 5

add them up and divide by total

Question 6

what is the median

Answer 6

middle value

Question 7

what is the mode

Answer 7

the most frequent occurring score

Question 8

what is the range

Answer 8

subtract the lowest from the highest and add 1

Question 9

what is standard deviation

Answer 9

measures how much scores deviate from the mean

Question 10

what is an evaluation of mean

Answer 10

• most sensitive and representative

- easily distorted(false)

Question 11

what is an evaluation of median

Answer 11

• not affected by extreme values

- less sensitive than mean

Question 12

what is an evaluation of mode

Answer 12

• easy to calculate

- crude, unrepresentative

Question 13

what is an evaluation of range

Answer 13

-easy to calculate

may be unrepresentative of data

Question 14

what is an evaluation of standard deviation

Answer 14

• more precise than range

- can be distorted by extreme values