STT 315 Practice Problems I for Sections 1.1 - 3.7.
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Solve the problem.
1) Parking at a university has become a problem. University administrators are in
Sample Problems
9
1. Given the isosceles trapezoid, find x.
14
45
x
24
2. Find the perimeter of the isosceles trapezoid.
60
32 of 12. If AC =
3. The altitude BD to the base AC of isosceles ABC has a length
10, find the perimeter of ABC.
4. Find the perime
Trapezoid Study Guide
H
A trapezoid is a quadrilateral with exactly one pair of parallel
sides. The parallel sides are called bases and the nonparallel
sides are called legs.
Base
G
Leg
Leg
An isosceles trapezoid is a trapezoid whose legs are congruent.
WORKSHEET ON RIGHT TRIANGLES
1. Find the length of each altitude.
a. _
b. _
12
12
60
c. _
12
45
60
30
45
30
2. Find x, y, k, and m.
x=_
y=_
k=_
m=_
x
6
y
45
30
m
k
_3. Find the length of a side of a square
whose diagonal measures 20.
_4. Find the length o
Geometry
Worksheet 6.3 Parallelograms
Name_
Date_Period_
Are the following parallelograms? If yes, why? (use one of the five reasons from section 6.3) If no,
tell what else would be needed.
1. _
_
2. _
_
3. _
_
7
5
3
3
7
7
5
7
4. _
_
5. _
_
8
100
70
120
6
Geometry Worksheet
8.5 (Angles of Elevation & Depression)
Name_
Date_Period_
Draw a picture, write a trig ratio equation, rewrite the equation so that it is calculator ready and then
solve each problem. Round measures of segments to the nearest tenth and
Geometry
Quadrilaterals from Midpoints
Name_
Date_Period_
A
Given: Quadrilateral ABCD
E, F, G, and H are the midpoints of
AB , BC , CD , and DA respectively.
1. Does EFGH look like a special kind of quadrilateral?
E
B
F
H
2. Draw diagonal AC . _ and _ are
6-2 Notes: Properties of Parallelograms
Any four-sided polygon is called a quadrilateral. A segment joining any two
nonconsecutive vertices is called a diagonal. A special kind of quadrilateral in which
both pairs of opposite sides are parallel is called
Geometry
Worksheet Connecting Midpoints
Name_
Date_Period_
1. Only one of the lengths a, b, or c can be found. Name the segment and find its length.
4
3
_
b
4
a
3
c
2. The figure formed by connecting successive midpoints of a rectangle with sides of
6 and
Part 2
Ovserved Proportion of accepted applicants for
enrollment
0.9
Z at 95% confidence interval
1.96
Sample size n
1360
Upper confidence limit p zsqrt(p*(1p)/n)
0.91594439
Lower confidence limit p zsqrt(p*(1p)/n)
0.88405561
Upperlimit of enrollment
1246
Geometry Pre-AP
Chapter 10 Extra Practice
Name_
Date_Period_
1.
A triangular banner has an area of 315 in.2. A similar banner has sides 4/3 times as long as those of the
smaller banner. What is the area of the larger banner?
2.
The sides of a parallelogra
Geometry
Worksheet-Congruent Triangles III
Name_
Date_Period_
Label the drawing with the given information and state why the triangles are congruent. Use all eight
theorems (SSS, SAS, ASA, AAS, HA, HL, LL, LA)
1. POR _ by _
POR TOR
PO TO
P
2. LFE _ by _
L
STT 315 - Lecture 3
Instructor: Aylin ALIN
04/02/2014
Midterm # 2
A
Name_ PID_ Section # (enrolled)_
* The exam is closed book and 80 minutes.
* You may use a calculator and the formula sheet that you brought to the exam.
* Tables for the standard normal
Statistics 13: Midterm 3
Test Form A
Instructions: Before you do anything, make sure your name, ID and your test form type (either
A, B, C or D) is on your scantron. You have until noon to nish this test. You may use one sheet
of handwritten notes and a c
Statistics 13, Discussion 8:
Normal random variables
DISCUSSION PROBLEMS
1. Open for questions on anything from Discussion 8,
7 and 6. I would like to think of this as basically
another help session so students can get together in
groups and work on probl
Statistics 13, Discussion 8:
Normal random variables
DISCUSSION PROBLEMS
1. Open for questions on anything from Discussion 8,
7 and 6. I would like to think of this as basically
another help session so students can get together in
groups and work on probl
Statistics 13, Lab 7:
Odds and expected winnings
Binomial random variables
LAB PROBLEMS
1. (Level 1) Suppose the odds that it rains tomorrow
is 1:8. Your friend wants to bet you that it doesnt
rain and says that he will give you $8 if it does rain,
but yo
Statistics 13, Lab 7:
Odds and expected winnings
Binomial random variables
LAB PROBLEMS
1. (Level 1) Suppose the odds that it rains tomorrow
is 1:8. Your friend wants to bet you that it doesnt
rain and says that he will give you $8 if it does rain,
but yo
Statistics 13, Discussion 6:
Random variables
Probability distribution function
Expected value, variance and standard deviation
LAB PROBLEMS
We are asked to calculated P (x > 3). Using the complement
rule we get
1. Let x be a random draw from the followin
Statistics 13, Discussion 6:
Random variables
Probability distribution function
Expected value, variance and standard deviation
LAB PROBLEMS
3. Suppose x is a random variable with the following
probability distribution function:
1. Let x be a random draw
Stats Cheat Sheet
Review Stuf
Central Limit Theorem: If a random sample of n observations from a population with a normal
distribution the sampling distribution will be a normal.
Ex: if n>30 the sample size is considered normal
Chapter 5
Z= x-/
x z /2( /
Sample right Triangle proofs:
_1. Given: WE
nkY A y
DTL
Wu x C
Prove: AA BY E ACDX B
W m: J/W 'U
2. Given: Wi
D bisects W
m =
PrOVe: ASNDEASTA \L awe; N s T