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The probability of getting a bad egg in a lot of 400 is 0.035 . What is the number of bad eggs in the lot?

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answer is D.

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Detailed Solution

It is given that the probability of getting a bad egg in a lot of 400 is 0.035.
For an event A the probability of an event P(A) is represented as,

P (A) = Number of favourable outcomes Total number of outcomes

According to question probability

= 0.035

So,

P (A) = 0.035

.
And total eggs in a lot are 400
So,

n (S) = 400

.
Let

n (A)

be the number of bad eggs in a lot,
As,

P (A) = n (A) n (S),

So, the number of bad eggs is,

n (A) = n (S) × P (A)

.
we get

n A = 0.035 × 400 ⇒ n A = 14

Therefore, number of bad eggs is 14
Hence the correct option is 4.

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