A box contains a large number of transistors, 30 per cent of which are type A and the rest
type B. A random sample of 4 transistors is taken. Determine the probabilities that i. all
of type A ii. all of type B iii. Two of type A and two of type B
iv. three of type A and one of type B.
Answers
Answered by
4
Answer:
I think A one......
Step-by-step explanation:
But not sure about the answer.
Answered by
0
All are of type A when a random of 4 transistors are taken
Given:
A box contains a large number of transistors, A random sample of 4 transistors is taken.
To Find:
The probabilities of all the transistors which are mentioned
Solution:
To get the probabilities of the 4 transistors we get ,
All defective:
p =
=
=0.0256
None defective:
P =
= 0.1296
Hence, All are of type A when a random of 4 transistors are taken
#SPJ2
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