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Maths Revision Cards
Cards in this deck (6)
- 1Finding Averages
- 2a) Estimate the mean weight Mass (m) kg Frequency 30 ≤ m < 40 7 40 ≤ m < 50 6 50 ≤ m < 60 8 60 ≤ m < 70 4Frequency x Midpoint
245
270
440
260
Total = !215
1215 / 15 = 48.6 Kg - 3Find the mean 1,14,2,8,10,50,9,28,9,141+14+2+8+10+50+9+28+9+14 = 145
145 / 10 = 14.5
Mean = 14.5 - 4Pie Charts
- 5Ninety people were asked which newspaper they read. 45 read the Daily Bugle. 20 read Scotland Today. 15 read another paper. 10 do not read a paper. Calculate the number of degrees required to represent each answer in a pie chart.The Daily Bugle 45 (45/90) x 360 = 180°
Scotland Today 20 (20/90) x 360 = 80°
Other 15 (15/90) x 360 = 60°
I do not read a paper 10 (10/90) x 360 = 40° - 6The pie chart below shows the heights (in cm) of 30 pupils in a class. How many pupils are between 121-130cm tall?The angle of this sector is 36 degrees. The question says there are 30 pupils in the class. So, the number of pupils of height 121 - 130 cm is:
36/360 x 30 = 3
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- GCSE Maths Flashcards on Maths Revision Cards, created by Darcy Blanchard on 29/11/2017.
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- Darcy Blanchard
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