Suppose a study of speeding violations and drivers who use cell phones produced the following fictional data: Uses cell phone while driving Does not use cell phone while driving Total Table 3.2 Speeding violation in the last year 25 45 70 No speeding violation in the last year 280 405 685 Total a. Find P(Driver is a cell phone user). b. Find P(driver had no violation in the last year). c. Find P(Driver had no violation in the last year AND was a cell phone user). 305 450 755 The total number of people in the sample is 755. The row totals are 305 and 450. The column totals are 70 and 685. Notice that 305 + 450 = 755 and 70+685 = 755. Calculate the following probabilities using the table.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 14PPS
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Suppose a study of speeding violations and drivers who use cell phones produced the following fictional data:
Speeding violation in the
last year
25
Uses cell phone while driving
Does not use cell phone while
driving
Total
Table 3.2
45
70
No speeding violation in the
last year
280
405
685
Total
a. Find P(Driver is a cell phone user).
b. Find P(driver had no violation in the last year).
c. Find P(Driver had no violation in the last year AND was a cell phone user).
305
450
755
The total number of people in the sample is 755. The row totals are 305 and 450. The column totals are 70 and
685. Notice that 305 + 450 = 755 and 70 +685 = 755.
Calculate the following probabilities using the table.
Transcribed Image Text:Suppose a study of speeding violations and drivers who use cell phones produced the following fictional data: Speeding violation in the last year 25 Uses cell phone while driving Does not use cell phone while driving Total Table 3.2 45 70 No speeding violation in the last year 280 405 685 Total a. Find P(Driver is a cell phone user). b. Find P(driver had no violation in the last year). c. Find P(Driver had no violation in the last year AND was a cell phone user). 305 450 755 The total number of people in the sample is 755. The row totals are 305 and 450. The column totals are 70 and 685. Notice that 305 + 450 = 755 and 70 +685 = 755. Calculate the following probabilities using the table.
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