UNIVERSITY OF SASKATCHEWAN
Department of Mathematics & Statistics
Stat 103.3 Test 1
Date: February 3, 2017
Time: 45 minutes
Instructor: Qingde Yang
Closed Book, No Notes
One formula sheet and one Calculator are allowed.
PRINT your name clearly and write y
UNIVERSITY OF SASKATCHEWAN
Department of Mathematics & Statistics
Stat 103.3 Test 2
Date: March 3, 2017
Time: 45 minutes
Instructor: Qingde Yang
Closed Book, No Notes
One formula sheet and one Calculator are allowed.
PRINT your name clearly and write your
Stat 103 T2 2016-2017 Assignment 6
Due Time: 3:20PM March 3, 2017
Question 1 (10 points for each question. Total 20 points): An urn contains five red,
three orange, and two blue balls. Two balls are randomly chosen without replacement.
Let X represent the
Stat 103 T2 2016-2017 Assignment 8
Due Time: 3:20 PM March 24, 2017
Question 1(10 points for each question. Total 50 points): In a 400-page manuscript,
there are 100 random misprints. Assume that these misprints are distributed following
Poisson distribut
Stat 103 T2 2016-2017 Assignment 3
Due Time: 3:20 PM February 3,2017
Question 1(5 points for each question. Total 20 points): A box contains three black
balls and two white balls. Two balls are randomly drawn from the box one after one
without replacement
Stat 103 T2 2016-2017 Assignment 5
Due Time: 3:20 PM February 17,2017
Question 1 (20 points for each question. Total 40 points):
(a) Choose 4 shoes from 6 pairs of shoes such that there is no matching pair of shoes.
How many choices are there?
(b) Choose
Stat 103 T2 2016-2017 Assignment 4
Due Time: 3:20 PM February 10,2017
Question 1(20 points): There are three boxes. Box 1 contains one white ball and two
black balls; box 2 contains two white balls and one black ball; box 3 contains two white
balls and th
Stat 103 T2 2016-2017 Assignment 7
Due Time: 3:20 PM March 10, 2017
Question 1(10 points for each question. Total 40 points): Suppose that the probability
that an item produced by a certain machine will be defective is 0.2. A sample of 12 items
is chosen.
Stat 103 T2 2016-2017 Assignment 2
Due Time: 3:20 PM January 27,2017
Question 1(8 points each question. Total 40 points): In a survey of 240 college
students, 146 watched at least one reality show on television each week, 149 watched at
least one video on
Stat 103 T2 2016-2017 Assignment 1
Due time: 3:20 PM Friday January 20, 2017
Question 1(Total 30 points): A coin is tossed three times. Describe the following sets:
S: the universal space (or sample space)
A: the set that at least one head is obtained.
B:
PHYSICS 115: WRITTEN ASSIGNMENT 10
Due:
22 Nov 2016 at 1830 (Sec 04)
24 Nov 2016 at 0900 (Sec 97)
24 Nov 2016 at 1000 (Sec 02)
25 Nov 2016 at 0930 (Sec C15)
25 Nov 2016 at 1030 (Sec 01)
25 Nov 2016 at 1130 (Sec 03)
For each of the following questions, wor
Statistics 244.3 Review Problems for the Final Exam
Solutions
I
The following data were collected on n = 3023 persons who suffered a head injury in a
motor vehicle accident in Saskatchewan. The variables that were measured for each case
were:
1.
2.
Sex (S
Serediak, Alexandra
als839
STAT 245
2015-2016 regular session, Term 2
1 a)
What one can conclude about the weight problem in America is that more than half of adults 18 years
old and over are overweight or obese at respective percentages of 35.3 and 26.2.
Stats 245.3(01) Make—up Test
Open Br:er — students are ettewed nercs. fer-mute sheets, beetles. eeitnrtnters
Select answer clescst tn the cerrcct answer
Instructer: W. H. Lavcrty November 24, 20H}
1. A researcher was interested in hew pcrfermance en a sta
a in ,smrs 995’.
STATISTICS 245.3 (02)
Term Test 1 - Monday, January 21, 2008
Time: 1 hour
(W. H. Laverty)
an Book Examination: Students are allowed to take into the examination a
calculator, their textbook, and formulae sheets. Each question is worth ap
10000
0
5000
Frequency
15000
Population Distribution when H0: mu = 170 is true
140
160
180
200
220
200
220
X
10000
5000
0
Frequency
15000
Population Distribution when H1: mu = 175 is true
140
160
180
Y
300
200
0
100
1:500
400
500
Distribution of xbar of n
Organizing and describing Data
Techniques for continuous
variables
The Grouped frequency table:
The Histogram
To Construct
A Grouped frequency table
A Histogram
1. Find the maximum and minimum of the
observations.
2. Choose non-overlapping intervals of
Numerical Measures
Numerical Measures
Measures of Central Tendency (Location)
Measures of Non Central Location
Measure of Variability (Dispersion,
Spread)
Measures of Shape
Measures of Central Tendency
(Location)
Mean
Median
Mode
Central Location
0.14
Stats 245.3(02) Assigment 8 - Solutions
1.
Waiting times to see a doctor at a large clinic are normally distributed with a mean of 68.2
minutes and a standard deviation of 14.8 minutes. Find the probability that the waiting time to
see a doctor is less th
Stats 245 Assignment 6- Solutions
Not to be handed in
1. How many distinct ways can the letters of the word statistics be ordered.
Solution: There are 10 positions for the letters:
1
2
3
4
5
6
7
8
9
10
10 10 9 8
Let n1 = the # ways to chose positions for
Statistics 245.3(01) Assignment 7 - Solutions
1.
Find all values of k so that the following is a probability distribution:
x
1
2
3
4
P(x)
0.15
2k
0.52
k
ANSWER:
k = 0.11
2.
Find the mean and standard deviation of the following probability distribution:
x
Statistics 245.3 (01) Assignment 5
Solutions
I
In a recent study, n = 2218 college students were asked which political party
(Liberal, Conservative, New Democrat, Other) they support. They were also
asked to identify if the major factor in making this cho
Statistics 245.3 Review Problems for the Final Exam
Solutions
I
The following data were collected on n = 3023 persons who suffered a head injury in a
motor vehicle accident in Saskatchewan. The variables that were measured for each case
were:
1.
2.
Sex (S
Stats 245.3(02) Assignment 4 - Solutions
I. In the following study the investigator was interested in determining if the Presence of Heart
Disease was related to Systolic Blood pressure. The study consisted of four groups of
subjects with differing levels
Stats 245 Assignment 2 - Solutions
For each of the three drugs A, B and C
a) Compute the mean and the standard deviation.
Drug A
n
x=
x
i =1
i
n
=
209.2
= 10.46 , s =
20
n
xi
n
2
xi i =1
2
2431.72 (209.2 )
2
n
i =1
n 1
=
20 = 3.58
19
Drug B
n
x=
x
i
Stats 245 - Asst 3 Solutions
a) Construct the stem and leaf display for Math proficiency for students who had
completed grade 13.
5
3567
6
0119
7
0123344445567
8
05
9
0
b) Construct the stem and leaf display for Math proficiency for students who had
compl