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Probability and Stochastic Processes
April 15, 2015
Examination 2
You have 110 minutes to answer the following questions on this examination paper. This is a closed
book exam; neither notes nor calculators are permitted. Ma
Probability & Statistics L2
Practice Worksheet 7-4 & 7-5
1) Find the values for and :
a) 99% CI when n = 20
Name:_
b) 90% CI when n = 23
c) 98% CI when n = 8
2) Find the 95% CI for the variance of the ages of seniors at Oak Park College if a sample of 27
PROBABILITY & STATISTICS (L2)
Assignment Guide:
CHANGE
UNIT 8 Chapter 9 (Sections 9.1 9.6)
SUBJECT TO
Testing the Difference between Two Means, Two Variances, and Two Proportions
Date
Section
Page(s)
Assignment
#1
_
Value Method*
9.2
p. 472-473
#6, 7, 9,
UM 2
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Probability & Statistics L2
Chapter 1 Review
_
Name:_
Date:_ Period:
1. Consider the following article: According to a survey conducted by Bailey and Smith, the number of Americans
over 65 years old increased by 6.3% over last year at this time. The surve
Probability & Statistics L2
3.3 Extra Practice CVar, Chebyshevs, & Empirical Rule
_
Name: _
Date: _ Period:
1) The mean number of sales of homes over a 3-month period is 23, and the standard deviation is 4. The mean of the
commissions is $12,465, and the
Probability & Statistics L2
3.1-3.3 REVIEW
_
Name: _
Date: _ Period:
For problems 1 & 2, you must show work that shows how you calculated each value.
1) The ages from a sample of 9 teachers is listed here: cfw_23, 22, 25, 30, 28, 25, 32, 30, 30
Find:
a. m
PROBABILITY & STATISTICS (L2)
Assignment Guide:
Date
UNIT 3 Chapter 4 (Sections 4.1 to 4.6)
Probability and Counting Rules
Section
Page(s)
SUBJECT TO CHANGE
Assignment
#1
_
4.2
p. 185 186
#(1 14)all
#2
_
4.2
p. 186 - 188
#(17 21)odd, 27, 37, 40
#3
_
4.3
p
Probability & Statistics L2
4.5 & 4.6 Review Worksheet
_
Name:_
Date: _ Period:
1) How many ways can a baseball coach arrange a batting line-up of 9 players if there are 15 players on the team?
2) A drawer contains 11 identical red socks, and 8 identical
Probability & Statistics L2
Unit 3 Optional Review Worksheet
_
Name:_
Date: _ Period:
1) During a sale at a mens store, 16 white sweaters, 3 red sweaters, 9 blue sweaters, and 7 yellow sweaters were
purchased. If a customer is selected at random, find the
Probability 8: Statistics L2 Name:
Unit 3 OptEonal Review Worksheet _ Date: Period:
1) During a sale at a mens store, 16 white sweaters, 3 red sweaters, 9 biue sweaters, and 7 yeilow sweaters were
purchased. lf a customer is seEected at random, nd the pr
Probability & Statistics L2
5.4 & 5.5 - Distributions Review Worksheet
_
Name:_
Date: _ Period:
For each problem, a) tell which distribution the situation is describing and b) solve.
1. A board of directors consists of 7 men and 5 women. If 3 people are r