Question

A shipment To a warehouse consists of 4500 MP3 players the manager chooses a random sample of 50 MP3 players and finds that 7 are defective how many MP3 players I likely to be defective

Answer 1

630 MP3 players are likely to be defective.

Explanation:

Given:

A shipment to a warehouse consists of 4500 MP3 players the manager chooses a random sample of 50 MP3 players and finds that 7 are defective.

Now, to find the MP3 players which are likely to be defective.

Let the defective MP3 players be
`x.`

Total MP3 players = 4500.

In sample of 50 MP3 players 7 are defective.

Now, setting the proportion:

If, 50 is equivalent to 7.

Then, 4500 is equivalent to
`x.`

Now, to solve using cross multiplication method:

`(50)/(7) =(4500)/(x)`

By cross multiplying we get:

`50x=31500`

Dividing both sides by 50 we get:

`x=630.`

Therefore, 630 MP3 players are likely to be defective.