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How many defective telephones

How many defective telephones-example-1
User LightCZ
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1 Answer

3 votes

Answer:

Option 3: 300 phones

Explanation:

Given

Phone produces each day: 1000

Number of phones that were checked = 30

Defective phones = 9

So the probability of defective phones will be calculated by dividing the number of defective phones by total number of phones checked.

So, the probability of defective phones

= 9/30

= 0.3 or 30%

So, from 1000 phones the defective phones will be:

1000*0.3

= 300 Phones ..

User Dharmesh Rakholia
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6.5k points