Measures of location

Question 1

What is the mean?

Answer 1

The average of the data?

Question 2

How do you calculate the mean?

Answer 2

total of all values in a set of data/total number of pieces of data

Question 3

What is the mode?

Answer 3

The value a group that appears most often in a set of data

Question 4

What is the median?

Answer 4

The median is the middle value bring the data is arranged in order of size

Question 5

What is the range?

Answer 5

A measure of how spread out the data is

Question 6

What is the formula for the mean?

Answer 6

Σfx / Σf

Question 7

What is the formula for the median?

Answer 7

1/2 * (Σf + 1)

Question 8

What is the lower quartile?

Answer 8

Median of lower half of the data

Question 9

What is the upper quartile?

Answer 9

Meaning of the upper half of the data

Question 10

What is the interquartile range?

Answer 10

The difference between the upper quartile and the lower quartile

Question 11

What is the formula for the lower quartile?

Answer 11

1/4 * (Σf+1)

Question 12

What is the formula for the upper quartile?

Answer 12

3/4 * (Σf + 1)

Question 13

What is an advantage of the mean?

Answer 13

It makes use of all the data

Question 14

What is a disadvantage of the mean?

Answer 14

This is affected by extreme values

Question 15

What is an advantage of the median?

Answer 15

Isn’t affected by extreme values

Question 16

What is a disadvantage of the median?

Answer 16

It is not always a data value

Question 17

What is an advantage of the mode?

Answer 17

It is not affected by extreme values

Question 18

What is a disadvantage of the mode?

Answer 18

There may be no mode or more than one

Question 19

What is an outlier?

Answer 19

An extreme value that lies outsidenthe overall patern of the data

Question 20

What ar the general formulae for outliers?

Answer 20

Data less than: Lower Quartile -1.5 * Interquartile Range
Data greater than: Upper Quartile + 1.5 * Interquartile Range

Question 21

How do you enter data into a calculator and get results from it?

Answer 21

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