The lifetime, in years, of an electrical component is the random variable T, with probability density function
Question:
The lifetime, in years, of an electrical component is the random variable T, with probability density function f given by
where A and λ are positive constants.
i. Show that A = λ.
It is known that out of 100 randomly chosen components, 16 failed within the first year.
ii. Find an estimate for the value of λ, and hence find an estimate for the median value of T.
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Related Book For
Cambridge International AS & A Level Further Mathematics Coursebook
ISBN: 9781108403375
1st Edition
Authors: Lee Mckelvey, Martin Crozier
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