The time taken by employees at Grace Floral shop to put a bouquet together has a normaldistribution with mean 26.4 minutes and standard deviation .8 minutes.(i) Find the probability that an employee chosen at random takes less than 26.3 minutes toput a bouquet together. (ii) 20% of employees take more than t minutes to put a bouquet together. (ii) Find the valueof t.
The time taken by employees at Grace Floral shop to put a bouquet together has a normaldistribution with mean 26.4 minutes and standard deviation .8 minutes.(i) Find the probability that an employee chosen at random takes less than 26.3 minutes toput a bouquet together. (ii) 20% of employees take more than t minutes to put a bouquet together. (ii) Find the valueof t.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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Question
The time taken by employees at Grace Floral shop to put a bouquet together has a normal
distribution with
(i) Find the probability that an employee chosen at random takes less than 26.3 minutes to
put a bouquet together.
(ii) 20% of employees take more than t minutes to put a bouquet together. (ii) Find the value
of t.
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