A school has 600 pupils. The number in each year group is shown below: Year 7 8 9 10 11 Number of pupils 114 132 120 126 108 Stratified sample A stratified sample of 100 pupils is to be taken, related to how they travel to school. How many pupils from each year group should be tested?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 1E
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4. A school has 600 pupils. The number in each year group is shown below:
7
Year
8
9
10
11
Number of pupils
114
132
120
126
108
Stratified sample
A stratified sample of 100 pupils is to be taken, related to how they travel to school. How
many pupils from each year group should be tested?
Transcribed Image Text:4. A school has 600 pupils. The number in each year group is shown below: 7 Year 8 9 10 11 Number of pupils 114 132 120 126 108 Stratified sample A stratified sample of 100 pupils is to be taken, related to how they travel to school. How many pupils from each year group should be tested?
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