Comparing Cata Sets

Question 1

What can you compare data sets using

Answer 1

Averages
Measures Of spread
Measures of skew

Question 2

How can averages be used to compare data

Answer 2

The mean and the median can be used to give a quick comparison of 2 or more sets of data

Question 3

What can be used to show the measure of spread

Answer 3

Box plots
Can compare range
Can compare interquartile range
Median

Question 4

What does a small interquartile range and range show about the datas

Answer 4

That they were more consistent

Question 5

What is another way to measure the spread of data

Answer 5

Use standard deviation
Show the spread away from the mean

Question 6

What is one problem with using standard deviation to show the measures of spread

Answer 6

Doesn’t give you any actual values

Question 7

How can you measure the skew

Answer 7

Using box plots

Question 8

How can you show the measures of skew with box plots

Answer 8

Positive and negative skews

Question 9

Paris appropriate to compare data sets

Answer 9

Mean with standard deviation or the range
Median with interquartile range or the range
Mode with the range

Question 10

Why should you compare a sample of the population with the whole population

Answer 10

Because it isn’t necessarily representative of the population