2.6.9 Descriptive Stats

Question 1

calculate the mean for the under 25 condition

Answer 1

6+6+6+10+13= 41
41/5 = 8.2

Question 2

calculate the mean for the over 25 condition

Answer 2

2+4+5+7+3= 21
21/5 = 4.2

Question 3

calculate the median for the under 25 condition

Answer 3

6, 6, 6, 10, 13
= 6

Question 4

calculate the median for the over 25 condition

Answer 4

2, 3, 4, 5, 7
= 4

Question 5

calculate the mode for the under 25 condition

Answer 5

6, 6, 6, 10, 13
= 6

Question 6

calculate the mode for the over 25 condition

Answer 6

2, 3, 4, 5, 7
= no mode

Question 7

explain which measure of central tendency is the most appropriate for your experiment

Answer 7

the Median because there are anomalies which impact the mean

Question 8

outline one strength of each MoCT (measure of central tendency)

Answer 8

mean -
median -
mode-

Question 9

outline one strength of each MoCT (measure of central tendency)

Answer 9

mean -
median -
mode-

Question 10

calculate the range for under 25 condition

Answer 10

13-6 = 7

Question 11

calculate the range for over 25 condition

Answer 11

7-2 = 5

Question 12

outline one strength of calculating the range in your experiment

Answer 12

• easy to calculate

Question 13

outline one weakness of calculating the range in your experiment

Answer 13

• not as sensitive as standard deviation

Question 14

what is the formula for calculating standard deviation

Answer 14

s = bracket then backwards e sign then (x - x) squared/N