Answer A B and C please! Show work!
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.
Chapter12: Probability
Section12.4: Discrete Random Variables; Applications To Decision Making
Problem 10E
Related questions
Question
Answer A B and C please! Show work!
Transcribed Image Text:云
IF
II
# 102: According to The World Bank, only 9% of the population of Uganda had access to
electricity as of 2009. Suppose we randomly sample 160 people in Uganda. Let X = the
number of people who have access to electricity. (Bold #'s are randomized.)
a. What is the probability distribution for X?
2.
b. Using the formulas, calculate the mean and standard deviation of X. Round to two
decimals.
Mean=
What calculation did you do to get that answer?
Standard Deviation =
%3D
What calculation did you do to get that answer?
c. Use your calculator to find the probability that 15 people in the sample have access to
electricity. Round to five decimals.
BinomialDist(
d. Find the probability that at most ten people in the sample have access to
electricity. Round to five decimals.
BinomialDist
e. Find the probability that more than 25 people in the sample have access to
MacBook Air
000
000
DD
F7
F4
F5
93
F8
Expert Solution
Step 1
Given that
n=160 , p=9%=0.09 , q=1-p=1-0.09=0.91
X=the number of people who have access to electricity.
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