6) Supplementary Exercise 5.51
1 answer:
Answer:





Step-by-step explanation:
Given
The question illustrates binomial distribution and will be solved using:
Solving (a):
Given
Required
This is calculated using
This gives:
--- approximated
Solving (b):
Given
i)
Required
This is calculated as:
--- Complement rule

So:

ii)

This is calculated as:



iii)

This is calculated as:


iv)

This is calculated as:


Solving (c):

This is calculated as:




Express as percentage

The calculated probability (1.18%) is way less than the advocate's claim.
Hence, we do not believe the claim.
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