# GCSE Statistcs question

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#1
I need help on a question on a Statistics worksheet I was given. The question is:

A histogram uses a bar of width 2 cm and height 5 cm to represent a frequency of 30. A second bar is 4 cm wide. What height would it need to be to represent a frequency of 50?

Can someone please tell me how to work this out? I don't think it's as simple as proportion and doesn't
FD=F/CW have something to do with this?
0
7 years ago
#2
(Original post by Year11guy)
I need help on a question on a Statistics worksheet I was given. The question is:

A histogram uses a bar of width 2 cm and height 5 cm to represent a frequency of 30. A second bar is 4 cm wide. What height would it need to be to represent a frequency of 50?

Can someone please tell me how to work this out? I don't think it's as simple as proportion and doesn't
FD=F/CW have something to do with this?
It is as simple as proportion

area = 10 represents 30 people

So what area represents 50 people
0
#3
So SF is 3? 50/3=16.67 divide that by 4 is 4.167?? Am I right that it's 4.167cm?
0
7 years ago
#4
(Original post by Year11guy)
So SF is 3? 50/3=16.67 divide that by 4 is 4.167?? Am I right that it's 4.167cm?
yep

0
#5
Thanks, that was suspiciously easy. :/
0
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