Statistical Methods in
Engineering and Science
(STAT/MATH 390)
Instructor: Professor Brumback
Fall 2016 - Part 1
Updated: 10/18/16
STAT/MATH 390
0
Instructor: Professor or Dr. Brumback
Pronunciation: B RUM back NOT BROOM back
Research Associate Professor
Statistical Methods in
Engineering and Science
(STAT/MATH 390)
Instructor: Professor Brumback
Fall 2016 - Part 2
STAT/MATH 390
0
Probability
Warning
Much of the material on probability may appear easy
The formulas and explanations for EVERY step are
imp
Homework Set 5, STAT/MATH 390
Topic
Homework
Accuracy, precision, point estimate, CI
7.2, 7.7d, 7.8a, 7.11, C5.1, C5.2, C5.3
Error bounds, CI for mean and proportion
7.14, 7.17b, 7.22, 7.24, C5.4, C5.5, C5.6
CI for mean, difference in means and in proport
Homework Set 2, STAT/MATH 390
Topic
Homework
Discrete distributions
1.54; 1.57; 1.59; 1.64; C2.1;
Means of samples and distributions
2.4; C2.2 - C2.4
Variances of samples and distributions
2.15; 2.16; 2.22; 2.24; C2.5- C2.7
Quantiles of samples and distri
Answers
:
1.
What type of line is the graph of 4x + y = 3? (1 point)
Vertical
Horizontal
Rising
Falling
Score: 1 of 1
2.
What is the slope of the line between (3, 4) and (2, 1)? (1 point)
1
2
2
1
Score: 1 of 1
3.
What is the slope of the line y = 3? (1 po
1. (01.05)
Write the equation of a line with a slope of 3 and a y-intercept of 1. (2 points)
y=x+3
y = 3x + 1
3x + y = 1
x + 3y = 1
Score: 2 of 2
2. (01.05)
Write the equation of the line that passes through (1, 3) and has a slope of 2 in point-slope form
Answers
:
1. [01.02]
Which of the following expressions represents a function? (5 points)
y=x
2
cfw_(9, 2), (4, 2), (5, 3), (9, 4)
x = 3
2
x = 25 y
Score: 5 of 5
2
2. [01.02]
2
Consider the function f(x) = 8 3x . Find the value of f(x) when x = 3 and sele
1. (01.05)
Write the equation of a line with a slope of 3 and a y-intercept of 1. (2 points)
y=x+3
y = 3x + 1
3x + y = 1
x + 3y = 1
Score: 2 of 2
2. (01.05)
Write the equation of the line that passes through (1, 3) and has a slope of 2 in point-slope form
1. (02.01)
What is the simplified form of
? (1 point)
Score: 0 of 1
2. (02.01)
What is the simplified form of
x
x
2
Score: 0 of 1
3. (02.01)
? (1 point)
Which of the following represents
in radical form? (1 point)
Score: 0 of 1
4. (02.01)
Which of the fol
Given the equation
(2 points)
= 3, solve for x and identify if it is an extraneous solution.
x = 4, solution
is extraneous
x = 4, solution
is not
extraneous
x = 5, solution
is extraneous
x = 5, solution
is not
extraneous
Score: 2 of 2
2.
Given the equatio
Alexander
Palmer
Algebra 1
2011
Writing Equations in Point Slope and Standard
Form
5/20/
13
Write the equations of the lines in both (A) point-slope form and (B) standard form
1.
(A.) y 4 = 2 (x 3)
2.
(B.) A (-3) + B (4) = C
(A.) y (-4) = -0.5(x 1)
(B.) A