Question

1 There are 60 light bulbs of which 10 are faulty. 7 bulbs are chosen at random, without replacement. Find the probability that 3 of these are faulty.

Name: 1 There are 60 light bulbs of which 10 are faulty. 7 bulbs are chosen at random, without replacement. Find the probability that 3 of these are faulty.
Uploaded: 2023-03-18T04:44:37-08:00
Duration: 1 min 31 s
Channel: Pritesh Ranjan
Description: 1 There are 60 light bulbs of which 10 are faulty. 7 bulbs are chosen at random, without replacement. Find the probability that 3 of these are faulty.

          1 There are 60 light bulbs of which 10 are faulty. 7 bulbs are chosen at random, without replacement. Find the probability that 3 of these are faulty.

1 There are 60 light bulbs of which 10 are faulty. 7 bulbs are chosen at random, without replacement. Find the probability that 3 of these are faulty.

Added by Cristina C.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Pritesh Ranjan

03/18/2023

Step 1

Step 1: The probability of choosing 3 faulty bulbs out of 7 is given by: $$P(3 \text{ faulty}) = \frac{{10 \choose 3} {50 \choose 4}}{{60 \choose 7}}$$ Show more…

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1 There are 60 light bulbs of which 10 are faulty. 7 bulbs are chosen at random, without replacement. Find the probability that 3 of these are faulty. 1 There are 60 light bulbs of which 10 are faulty. 7 bulbs are chosen at random, without replacement. Find the probability that 3 of these are faulty.