Then the mean number (to the nearest whole number) of students who will finish the exam in less than 1 hour for 12 students randomly selected is equal to:
Then the mean number (to the nearest whole number) of students who will finish the exam in less than 1 hour for 12 students randomly selected is equal to:
Chapter5: Exponential And Logarithmic Functions
Section5.5: Exponential And Logarithmic Models
Problem 4ECP
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![The time taken by a student to finish a statistics exam can be modeled using the following
cumulative distribution function:
F(x) = 1 - e-0.9x
x>0
Suppose that the time taken for a student to finish the exam is constant from student to
student.
Then the mean number (to the nearest whole number) of students who will finish the exam
in less than 1 hour for 12 students randomly selected is equal to:
8
None of the other options
7](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F759524d4-0a4e-46cf-b925-609145e5a9db%2Fa964bf06-929c-44df-b891-3f5b36707f77%2Fxrhtubf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The time taken by a student to finish a statistics exam can be modeled using the following
cumulative distribution function:
F(x) = 1 - e-0.9x
x>0
Suppose that the time taken for a student to finish the exam is constant from student to
student.
Then the mean number (to the nearest whole number) of students who will finish the exam
in less than 1 hour for 12 students randomly selected is equal to:
8
None of the other options
7
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