Chief Editor

Table of Contents

Texting behavior Talks on cell phone daily Does not talk on cell phone daily Total
Light 110 146 256
Medium 139 164 303
Heavy 166 74 240
Total 415 384 799
In a study of cell phone use, 799 randomly selected US teens were asked how often they talked on a cell phone and about their texting behavior. The data are summarized in the table above. If one of the 799 teens surveyed is selected at random, what is the probability that the teen talks on a cell phone daily?
Difficulty: Easy
A:

$\frac{1}{799}$

B:

$\frac{415}{799}$

C:

$\frac{384}{415}$

D:

$\frac{384}{799}$

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