Question

A company manufactures CD drives that have a 1.6% chance of experiencing disc-read errors. If a CD drive is tested for 250 read operations, the number of times it may fail is ? .

Answer 1

1.6% of 250 = (1.6  *250) / 100  =  4 times

Answer 2

Answer:

The number of times CD drives may fail are 4 .

Step-by-step explanation:

Formula

$Percentage = \frac{Part\ values\times 100}{Total\ value}$

As given

A company manufactures CD drives that have a 1.6% chance of experiencing disc-read errors.

If a CD drive is tested for 250 read operations .

Percentage = 1.6 %

Total value = 250

Put all the values in the formula

$1.6= \frac{Part\ values\times 100}{250}$

$Part\ value= \frac{1.6\times 250}{100}$

$Part\ value= \frac{400}{100}$

Part value = 4

Therefore the number of times CD drives may fail are 4 .