Name: SAT Math Help & School Math Mastery
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#13745

statistics

probability

easy

15 sec

In a batch of smartphones from a manufacturing line, it was found that 7 out of every 50 smartphones did not pass the quality inspection. If one smartphone is randomly selected from this batch, what is the probability that it did not pass the quality inspection?

A.

$\frac{1}{7}$

B.

$\frac{7}{50}$

C.

$\frac{50}{7}$

D.

$\frac{1}{50}$