Question

The probability of getting a defective bulb in a lot of 500 bulbs is Ò.290. Then, the number of defective bulbs in the lot is (2) 140 (b) 145 (c)50 (d) 100​

Answer 1

Step-by-step explanation:

please mark as Branliset

Answer 2

Given:

Probability = 0.290

n(S)=500

To find:

The number of defective bulbs in the lot [ n(A)]

Solution:

$Probability=\frac{number of favourable outcomes}{Total number of favourable outcomes}$

$0.290=\frac{n(A)}{500}$

Cross multiply to find n(A),

$n(A)=0.290* 500$

n(A)=145 which is the number of defective bulbs.

The answer is b.145