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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 Total last year 280 405 685 305 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) 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.

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 Total last year 280 405 685 305 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) 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.

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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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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