Then the mean number (to the nearest whole number) of students who will finish the exam in less than 1 hour for 14 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 14 students randomly selected is equal to:
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...
Related questions
Question
i need the answer quickly
Transcribed Image Text:Question *
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 14 students randomly selected is equal to:
8
None of the other options
6.
O 7
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images
Recommended textbooks for you
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON
A First Course in Probability (10th Edition)
Probability
ISBN:
9780134753119
Author:
Sheldon Ross
Publisher:
PEARSON