MATH-111 DUPRE' PRACTICE TEST (F2009)
ID#XXX-XX-_ FIRST NAME_LAST
NAME_ANSWERS_
(PRINT IN LARGECAPITALS)
(PRINT IN LARGER CAPITALS)
LECTURE TIME_LAB DAY_DATE: 18 NOVEMBER 2009
PAY ATTENTION TO THE NEW PROBLEMS (90-140) BELOW
Supose that W, X and Y are var
Practice Problem Set III
Problem 1. A sample of size 15 resulted in a mean of 18.5 and standard deviation of 2.3.
a) Construct a 99% condence interval for the population mean.
b) What additional assumption is necessary for your condence interval to be cor
Homework 10 MATH-111 Due: November 17/19 in the lab.
Exercise 1. The difference of two population proportions is to be estimated
correctly within 5%. How many individuals need to be sampled from each
population?
Exercise 2. A sample of 200 individuals pro
Practice Problem Set II
Problem 1. A poker deck contains 52 cards (A, K, Q, J and 10 to 2 in the suits , , , ). Initially 2
cards are dealt to each player and during the rounds of betting 5 community cards are eventually revealed.
Thus every player can ma
Practice Problem Set I
Problem 1. A skat deck contains 32 cards: A, K, Q, J, 10, 9, 8 and 7 each in the suits , , and . A
card is randomly drawn from the deck.
a) What is the probability that you draw an ace?
b) What is the probability that you draw any c
MATH-111
Midterm Exam I
September 21, 2009
Name:
Section:
06 (lab on Tuesday)
07 (lab on Thursday)
Instructions:
Print your name in the space above.
Check your correct section number.
Only this exam, a pen and an ocially supported calculator are permitted
MATH-111
Midterm Exam I
September 21, 2009
Name:
Section:
06 (lab on Tuesday)
07 (lab on Thursday)
Instructions:
Print your name in the space above.
Check your correct section number.
Only this exam, a pen and an ocially supported calculator are permitted
Practice Exam
Exercise 1. Let x be a normally distributed random variable with = 10 and = 4.
a) Find P (x = 0).
b) Find P (x < 0).
c) Find a such that P (x > a) = 0.1.
d) Find a such that P (a < x < 10) = 0.3.
e) Find a such that P (a < x < 15) = 0.5.
f)