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Slide1
Bar Chart – Finding Averages – Worksheet A
The worksheet is in 2 sizes.
Slide2To print handouts from slides -
Select the slide from the left. Then click:
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Slide3Slide4App Store Data
Nu-Gen Games Ltd sell mobile phone games at
different price levels: £1, £2 & £3.
The bar chart shows sales over a day.
a) How much money did the company make from £2 games?
b) How much more money did they make from £3 games?
c) How many games were downloaded in total?
God-Bod LTD sell health apps for £1, £2, £3 & £4.
The bar chart shows sales over a week.
2) Complete the frequency table to help with these questions.
a) How many apps were sold in total?
b) How much money did the company make in total?
c) Use this information to calculate the mean average sale value.
Bubble Games records the ages of people who play its games.
3) Complete a frequency table to help answer these questions:
What is the
range
of player ages?
What is the
mode
age?
What is the median age? (imagine putting all the players in age order & picking the middle player)What is the mean age of the players?
App Price (£)FrequencyTotal Spent1234
£1 games
£2 games
£3 games
Sales
2
4
6
8
0
10
£1
£2
£3
£4
App Price
Frequency
0
2
4
6
8
10
12
Age
10111213
10
Player Age
Frequency
11
12
13
0
5
10
15
20
25
30
1)
20
a) Who spent the most time playing?
b) Who played on the most days?
b) Compare the mean & median time spent playing for Tim & Jim
Frequency
0
4) Tim & Jim both play Berserk Battle. Every day they played in June,
they recorded how long they spent playing (to the nearest 10 minutes).The dual bar chart shows this data.
30
40
50
2
4
6
Tim
Jim
Key
Minutes playing
Slide5App Store Data
Nu-Gen Games Ltd sell mobile phone games at
different price levels: £1, £2 & £3.
The bar chart shows sales over a day.
a) How much money did the company make from £2 games?
b) How much more money did they make from £3 games?
c) How many games were downloaded in total?
God-Bod LTD sell health apps for £1, £2, £3 & £4.
The bar chart shows sales over a week.
2) Complete the frequency table to help with these questions.
a) How many apps were sold in total?
b) How much money did the company make in total?
c) Use this information to calculate the mean average sale value.
Bubble Games records the ages of people who play its games.
3) Complete a frequency table to help answer these questions:
What is the
range
of player ages?
What is the
mode
age?
What is the median age? (imagine putting all the players in age order & picking the middle player)What is the mean
age of the players?App Price (£)FrequencyTotal Spent11010281632646242656
£1
games
£2 games
£3 games
Sales
2
4
6
8
0
10
£1
£2
£3
£4
App Price
Frequency
0
2
4
6
8
10
12
Age10111213
10
Player Age
Frequency
11
12
13
0
5
10
15
20
25
30
1)
20
a) Who spent the most time playing?
b) Who played on the most days?
b) Compare the mean & median time spent playing for Tim & Jim
Frequency
0
4) Tim & Jim both play Berserk Battle. Every day they played in June,
they recorded how long they spent playing (to the nearest 10 minutes).
The dual bar chart shows this data.
30
40
50
2
4
6
Tim
Jim
£2 × 6 = £12
£3 × 8 = £24
£12 more
24
26
£56
£56 ÷ 26 = £2.15
Key
Minutes playing
Slide6App Store Data
Nu-Gen Games Ltd sell mobile phone games at
different price levels: £1, £2 & £3.
The bar chart shows sales over a day.
a) How much money did the company make from £2 games?
b) How much more money did they make from £3 games?
c) How many games were downloaded in total?
God-Bod LTD sell health apps for £1, £2, £3 & £4.
The bar chart shows sales over a week.
2) Complete the frequency table to help with these questions.
a) How many apps were sold in total?
b) How much money did the company make in total?
c) Use this information to calculate the mean average sale value.
Bubble Games records the ages of people who play its games.
3) Complete a frequency table to help answer these questions:
What is the
range
of player ages?
What is the
mode
age?
What is the median age? (imagine putting all the players in age order & picking the middle player)What is the mean age of the players?
App Price (£)FrequencyTotal Spent11010281632646242656
£1
games£2
games£3
games
Sales
2
4
6
8
0
10
£1
£2
£3
£4
App Price
Frequency
0
2
4
6
8
10
12
AgeFrequencyTotal Age1015150112527512303601356575850
10
Player Age
Frequency
11
12
13
0
5
10
15
20
25
30
1)
20
a) Who spent the most time playing?
b) Who played on the most days?
b) Compare the mean & median time spent playing for Tim & Jim
Frequency
0
4) Tim & Jim both play Berserk Battle. Every day they played in June,
they recorded how long they spent playing (to the nearest 10 minutes).
The dual bar chart shows this data.
30
40
50
2
4
6
Tim
590 minutes16 days playing
36.9 minute mean40 minute median
Tim
Jim
Jim
450 minutes
15 days playing
30 minute mean
30 minute median
£2 × 6 = £12
£3 × 8 = £24
£12 more
24
26
£56
£56 ÷ 26 = £2.15
3 years
12 years old
38
th
player = 11 years old
850 ÷ 75 = 11.3 years old
Key
Minutes playing
Slide7App Store Data
Nu-Gen Games Ltd sell mobile phone games at
different price levels: £1, £2 & £3.
The bar chart shows sales over a day.
a) How much money did the company make from £2 games?
b) How much more money did they make from £3 games?
c) How many games were downloaded in total?
God-Bod LTD sell health apps for £1, £2, £3 & £4.
The bar chart shows sales over a week.
2) Complete the frequency table to help with these questions.
a) How many apps were sold in total?
b) How much money did the company make in total?
c) Use this information to calculate the mean average sale value.
Bubble Games records the ages of people who play its games.
3) Complete a frequency table to help answer these questions:
What is the
range
of player ages?
What is the
mode
age?
What is the median age? (imagine putting all the players in age order & picking the middle player)What is the mean age of the players?
App Price (£)FrequencyTotal Spent1234
£1 games
£2 games
£3 games
Sales
2
4
6
8
0
10
£1
£2
£3
£4
App Price
Frequency
0
2
4
6
8
10
12
Age
10111213
10
Player Age
Frequency
11
12
13
0
5
10
15
20
25
30
1)
20
a) Who spent the most time playing?
b) Who played on the most days?
b) Compare the mean & median time spent playing for Tim & Jim
Frequency
0
4) Tim & Jim both play Berserk Battle. Every day they played in June,
they recorded how long they spent playing (to the nearest 10 minutes).The dual bar chart shows this data.
30
40
50
2
4
6
Tim
Jim
Key
Minutes playing
Slide8Slide9Questions?
Comments?
Suggestions?
…or have you found a mistake!?Any feedback would be appreciated .Please feel free to email:tom@goteachmaths.co.uk