he time spent waiting in the line is approximately normally distributed. The mean waiting time is 7 minutes and the variance the waiting time is 9. Find the probability that a person will wait for more than 13 minutes. Round your answer to four ecimal places. Iswer 画 Tables 围 Keypa Keyboard Shorto wou would like to look up the value in a table, select the table you want to view, then either click the cell at the intersection of e row and column or use the arrow keys to find the appropriate cell in the table and select it using the Space key. Normal Table -o to -z Normal Table -∞ to -
he time spent waiting in the line is approximately normally distributed. The mean waiting time is 7 minutes and the variance the waiting time is 9. Find the probability that a person will wait for more than 13 minutes. Round your answer to four ecimal places. Iswer 画 Tables 围 Keypa Keyboard Shorto wou would like to look up the value in a table, select the table you want to view, then either click the cell at the intersection of e row and column or use the arrow keys to find the appropriate cell in the table and select it using the Space key. Normal Table -o to -z Normal Table -∞ to -
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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Question
Transcribed Image Text:The time spent waiting in the line is approximately normally distributed. The mean waiting time is 7 minutes and the variance
of the waiting time is 9. Find the probability that a person will wait for more than 13 minutes. Round your answer to four
decimal places.
Answer
囲 Tables
в Кеурad
Keyboard Shortcuts
If you would like to look up the value in a table, select the table you want to view, then either click the cell at the intersection of
the row and column or use the arrow keys to find the appropriate cell in the table and select it using the Space key.
Normal Table -o to -z
Normal Table -00 to =
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