predict how many of the phones are likely to be defective. Round to the nearest

Mathematics
Tutor: None Selected Time limit: 1 Day

A cell phone company orders 600 new phones from a manufacturer. If the probability of a phone being defective is 3.5%, predict how many of the phones are likely to be defective. Round to the nearest whole number.

a.  18 phones

b.  210 phones

c.  26 phones

d.  21 phones

May 4th, 2015

Probability of a defective phone is 3.5%, as a fraction that is 7/200. So it follows: 600 * 7/200 = 4200 / 200 = 21--> Therefore, there is about 21 phones that will be defective.

the answer is d

May 4th, 2015

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