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The Normal Distribution

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Question 214

The random variable XXX has a normal distribution with mean 50 and standard deviation 8.

a.

Find P(X<62.4)P(X < 62.4)P(X<62.4).

[2]
b.

Find the value of kkk such that P(X<k)=0.0668P(X < k) = 0.0668P(X<k)=0.0668.

[2]
c.

Find the value of mmm such that P(X>m)=0.0668P(X > m) = 0.0668P(X>m)=0.0668.

[2]
d.

Find P(k<X<m)P(k < X < m)P(k<X<m).

[2]

The Normal Distribution Questions

  1. A Level
  2. /Maths
  3. /The Normal Distribution

Practise Edexcel A Level Maths The Normal Distribution with exam-style questions for A Level Maths. 439 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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