analysis of quantitative data

Question 1

what is nominal data

Answer 1

frequency data

Question 2

what is ordinal data

Answer 2

ranked data

Question 3

what is interval data

Answer 3

identical gaps no true 0

Question 4

what is ratio data

Answer 4

identical gaps true 0

Question 5

how to calculate standard deviation

Answer 5

__________________
/ E (x-mean)^2
\/ n-1

Question 6

what is SD +- 1

Answer 6

68% of data within 1 SD

Question 7

what does SD +-2 mean

Answer 7

95% of data within 2 SDs

Question 8

what does +-3 SD mean

Answer 8

99% of data within 3 SDs

Question 9

draw a negative skewed graph

Answer 9

mean then median then mode
mean the lowest
mode the highest
highest right

Question 10

draw a positive skewed graph

Answer 10

mode then median then mean
mode the highest
mean the lowest
highest left