AS Edexcel Statistics Quiz

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  • Created by: Cymbeline
  • Created on: 15-01-12 05:05

1. After predictions are made in a Mathematical modelling process, what comes next?

  • experimental data is collected
  • the model is refined
  • statistical techniques are used
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Other questions in this quiz

2. P(A|B)=...?

  • P(A∩B)/P(A)
  • P(AUB)/P(B)
  • P(A∩B)/P(B)
  • P(B∩A)/P(B)

3. in regression, b=...?

  • Sxx/Sxy
  • Syy/Sxy
  • Sxy/Sxx
  • Sxx/Syy

4. The median of a data set is 19.8, the lower quartile is 11.2 and the upper quartile is 25.3, the data is positively skewed.

  • False
  • True

5. the formula for variance in Discrete uniform distribution is...?

  • (n-1)(n-1)/12
  • (n+1)(n-1)/12
  • n+1)(n-2)/12
  • (n+1)(n-1)/2

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