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2 Statistics

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Question 299

Class A contains 24 students and has mean score 62. Class B contains 16 students. The mean score for all 40 students is 66.

a.

Find the mean score for class B.

[3]
b.

State why the combined mean alone is not enough to compare the consistency of the two classes.

[1]
Markscheme

2 Statistics Questions

  1. A Level
  2. /Maths
  3. /2 Statistics

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