mean mode etc

Question 1

strength of mode

Answer 1

• easy to calculate

- for data categories, this is the only measure to use (eg whats your fav dessert)

Question 2

weakness of mode

Answer 2

• not representative of data as a whole

- can differ greatly from other measures used

Question 3

strength of mean

Answer 3

-includes all scores in it, so representative

Question 4

weakness of mean

Answer 4

easily distorted by extreme values

Question 5

strength of median

Answer 5

not affected by extreme scores

Question 6

weakness of median

Answer 6

not all scores included in calculation

Question 7

strength of range

Answer 7

easy to calculate

Question 8

weakness of range

Answer 8

only takes into account of the highest score and lowest score

Question 9

standard deviation meaning

Answer 9

how much variation there is from the average

if it’s closer to 0, it means there’s an average
eg

7 7 7 7 7 7 = 0
6 5 9 3 1 8= 5 (not accurate and i haven’t calculated it and you don’t need to calculate it)

Question 10

strength of SD

Answer 10

not affected by extreme scores

-takes into account the distance of all scores from mean

Question 11

weaknesses of SD

Answer 11

difficult to calculate