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.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Please Answer all parts as all parts are interrelated to each other
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).
d. Find P(Driver is a cell phone user OR driver had no violation in the last year).
e. Find P(Driver is a cell phone user GIVEN driver had a violation in the last year).
f. Find P(Driver had no violation last year GIVEN driver was not 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: 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). d. Find P(Driver is a cell phone user OR driver had no violation in the last year). e. Find P(Driver is a cell phone user GIVEN driver had a violation in the last year). f. Find P(Driver had no violation last year GIVEN driver was not 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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