Five hundred students are interviewed about their ways to get to school. The results are summarized in the table. Bus Car Other Total Middle School 124 38 167 High School 136 185 12 333 Total 260 223 17 500 Select all the statements that must be true about a student chosen at random from those interviewed. O The probability that the selected student used the bus to get to school under the condition that the student is 260 in middle school is 500 223 O The probability that the selected middle school or high school student used a car to get to school is 500 390 500 O The probability that the selected student used a car to get to school or is a middle school student is O The probability that the selected student used a car or bus to get to school under the condition that the 321 student is in high school is 333 O The probability that the selected student is in middle school under the condition that the student takes the 124 bus to school is 167 O P(bus | middle school)> P(bus | high school) 38 O P(car)= 500
Five hundred students are interviewed about their ways to get to school. The results are summarized in the table. Bus Car Other Total Middle School 124 38 167 High School 136 185 12 333 Total 260 223 17 500 Select all the statements that must be true about a student chosen at random from those interviewed. O The probability that the selected student used the bus to get to school under the condition that the student is 260 in middle school is 500 223 O The probability that the selected middle school or high school student used a car to get to school is 500 390 500 O The probability that the selected student used a car to get to school or is a middle school student is O The probability that the selected student used a car or bus to get to school under the condition that the 321 student is in high school is 333 O The probability that the selected student is in middle school under the condition that the student takes the 124 bus to school is 167 O P(bus | middle school)> P(bus | high school) 38 O P(car)= 500
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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Transcribed Image Text:Five hundred students are interviewed about their ways to get to school. The results are summarized
in the table.
Bus
Car
Other
Total
Middle School
124
38
167
High School
136
185
12
333
Total
260
223
17
500
Select all the statements that must be true about a student chosen at random from those
interviewed.
O The probability that the selected student used the bus to get to school under the condition that the student is
260
in middle school is
500
223
O The probability that the selected middle school or high school student used a car to get to school is
500
390
U The probability that the selected student used a car to get to school or is a middle school student is
500
O The probability that the selected student used a car or bus to get to school under the condition that the
321
student is in high school is
333
O The probability that the selected student is in middle school under the condition that the student takes the
bus to school is 124
167
O P(bus I middle school) P(bus | high school)
38
O P(car)=
Б00
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