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Statistics Midterm Review Part 2 Flashcards | StudBud
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Statistics Midterm Review Part 2
Statistics Midterm Review Part 2
35 terms
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StudBud Administration
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20 plays
Chapters 5, 6, and 7
Flashcards
35 cards
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Practice quiz
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Host live
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Questions
35
Answers
1
Given 20 students, find probability runny nose or sore throat.
0.55
0.30
0.25
0.80
2
You'll shoot your eye out.
The Family Man
The Shop Around the Corner
A Christmas Story
Miracle on 34th Street
3
He was a polymath -- geographer, criminologist, sociologist, meteorologist, and statistician.
Charles Darwin
Johann Gauss
Pafnuty Chebyshev
Francis Galton
4
While a prisoner-of-war, he flipped a coin 10,000 times to verify the Law of Large Numbers.
John Kerrich
Elon Musk
Blaise Pascal
Pierre de Fermat
5
Find the probability that a randomly chosen person is male given that he has a Ph.D.
0.003
0.007
0.505
0.514
6
The graph is a standard normal distribution. Find the area of the shaded region.
0.7888
0.2112
0.3944
0.8944
7
490 students: 66 get A chemistry, 58 A in stats, 30 A in both. Find P(A in chem or stats).
0.314
0.192
0.253
0.758
8
I'm Mister White Christmas, I'm Mister Snow.
Rudolph the Red-Nosed Reindeer
The Legend of Frosty the Snowman
The Nightmare Before Christmas
The Year Without a Santa Claus
9
I'm gonna deck your halls, bub.
Surviving Christmas
Christmas with the Kranks
Jingle All the Way
Joyeux Noel
10
Welcome to the party, pal.
Die Hard
Scrooged
Krampus
Lethal Weapon
11
35% of households own riding mower. Sample of 10, what is standard deviation of owners?
10
1.508
3.5
2.275
12
How many statistics courses did Ms Collier take in college?
2
1
3
0
13
Find probability a selected person is male or has a Ph.D.
0.518
0.511
0.007
0.514
14
73% of workers said job stressful. From 8 workers, what is mean number who think stressful?
5.84
2.16
1.26
1.58
15
The mean is 12 with standard deviation 2. Is a score of 7 unusual?
yes; it is NOT within 2 standard deviations
no; it is below the mean
no; it is within 2 standard deviations
yes; it is NOT above the mean
16
250 strands of lights, 100 individual bulbs per strand for a grand total of 25,000...
Family Man
A Christmas Carol
Trading Places
Christmas Vacation
17
He wrote a book called
Innumeracy
.
John Allen Paulos
Douglas R. Hofstadter
Henry Clay
Samuel Clemmens
18
He was the founder of graphical statistics.
Vilfredo Pareto
William Playfair
John Paulos
Charlie Munger
19
If
z
is a standard normal variable, find the probability P(
z
< 1.27 ).
0.1020
0.8980
0.0968
0.9032
20
Compute the standard deviation of the given probability distribution.
18.75
11.1
123.2
15.75
21
Do you guys give up, or are you thirsty for more?
Home Alone
Bad Santa
A Christmas Story
The Santa Clause
22
The best way to spread Christmas cheer is singing loud for all to hear.
Frosty
Elf
How the Grinch Stole Christmas
Jingle All the Way
23
Club has 18 men & 22 women. If 3 are chosen randomly, what is the probability that all are men?
0.0826
0.4500
0.0911
0.1962
24
Find the mean, μ, for the binomial distribution with n = 125 and p = 0.8.
100
25
10
625
25
If n = 12, x = 10, and p = 7/10, find probability of x successes using binomial distribution.
0.1678
0.1078
0.1909
0.1386
26
Find the probability that a randomly chosen person has a Ph.D. given that she was female.
0.007
0.003
0.495
0.489
27
Find the mean of the probability distribution.
1.43
0.84
0.71
1.37
28
78% of flights arrived on time. From sample of 11, what is probability exactly 7 on time?
0.8642
0.0014
0.1358
0.0030
29
Population mean 50 and standard deviation 8. From sample of 36, what probability less than 46?
0.6915
0.0013
0.9987
0.3085
30
Given a 12-sided die (# 1 - 12 on faces), find P(less than 4).
1/3
7/12
1/12
1/4
31
Maybe it just needs a little love.
How the Grinch Stole Christmas
Rudolph the Red-Nosed Reindeer
Santa Claus is Coming to Town
A Charlie Brown Christmas
32
Find the mean of the probability distribution.
21
11.0
121.5
17.5
33
Mean is 500 with standard deviation 80. What percentage is less than 400?
1.25 %
10.56 %
90.82 %
15.87 %
34
If
z
is a standard normal variable, find the probability P(
z
> 0.82 ).
0.2119
0.7881
0.7939
0.2061
35
Find the standard deviation for the binomial distribution with n = 315 and p = 0.6.
8.7
75.6
13.7
189