Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Y9 Mathematics > Measures of location > Flashcards

Measures of location Flashcards

1
Q

What is the mean?

A

The average of the data?

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

How do you calculate the mean?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the mode?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the median?

A

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

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the range?

A

A measure of how spread out the data is

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the formula for the mean?

A

Σfx / Σf

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the formula for the median?

A

1/2 * (Σf + 1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What is the lower quartile?

A

Median of lower half of the data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is the upper quartile?

A

Meaning of the upper half of the data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is the interquartile range?

A

The difference between the upper quartile and the lower quartile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the formula for the lower quartile?

A

1/4 * (Σf+1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the formula for the upper quartile?

A

3/4 * (Σf + 1)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is an advantage of the mean?

A

It makes use of all the data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is a disadvantage of the mean?

A

This is affected by extreme values

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is an advantage of the median?

A

Isn’t affected by extreme values

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is a disadvantage of the median?

A

It is not always a data value

17
Q

What is an advantage of the mode?

A

It is not affected by extreme values

18
Q

What is a disadvantage of the mode?

A

There may be no mode or more than one

19
Q

What is an outlier?

A

An extreme value that lies outsidenthe overall patern of the data

20
Q

What ar the general formulae for outliers?

A

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

21
Q

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

A

MENU 6
1: 1-Variable
Enter results
AC
OPTN
2: 1-Variable Calc

Y9 Mathematics (4 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions