Engineering Economy
16th Edition
ISBN: 9780133582819
Author: Sullivan
Publisher: DGTL BNCOM
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Chapter 12, Problem 5P
To determine
Calculate the mean, standard deviation and probability distribution.
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Students have asked these similar questions
a) Grace Floral Shop sells several types of roses for all occasions. It is known that 43% of the
roses that is sold by Grace Floral Shop are Eden Roses. 12 roses are ordered to put in a bouquet
(i) Define the random variable for this situation and list its values
(ii) Stating its parameter(s), what is the probability distribution of this variable?
(iii)State the conditions that influence your choice of distribution.
(iv)Calculate the probability that at most 2 of the roses were Eden Roses.
b) The number of telephone calls coming into Grace Floral Shop to place orders averages 3 per
minute.
(i) Define the random variable in this situation and list its values.
(ii) Stating its parameter(s), what is the probability distribution of this variable?
(iii)Compute the probability that 5 calls will arrive per minute.
(iv)Compute the probability that 3 or more calls will arrive in a 3-minute interval?
Assume that the random variable x is normally distributed with
mean u = 70 and standard deviation o = 10. Find P(90 < x < 91)
0.9500
0.9951
0.0049
0.4500
The table below shows the probability distribution
of X. Find V(X), that is, the variance of X to three
decimal places.
P(X = x)
%3D
-4
0.08
1
0.1
0.3
12
0.52
Chapter 12 Solutions
Engineering Economy
Ch. 12 - Prob. 1PCh. 12 - Prob. 2PCh. 12 - A new snow making machine utilizes technology that...Ch. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Prob. 6PCh. 12 - Prob. 7PCh. 12 - Prob. 8PCh. 12 - Prob. 9PCh. 12 - Prob. 10P
Ch. 12 - Prob. 11PCh. 12 - Prob. 12PCh. 12 - Prob. 13PCh. 12 - Prob. 14PCh. 12 - Prob. 15PCh. 12 - Prob. 16PCh. 12 - Prob. 17PCh. 12 - Prob. 18PCh. 12 - Prob. 19PCh. 12 - Prob. 20PCh. 12 - Prob. 21PCh. 12 - Prob. 22PCh. 12 - If the interest rate is 8% per year, what decision...Ch. 12 - Prob. 24PCh. 12 - Prob. 25PCh. 12 - Prob. 26SE
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