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Probability Deck 1 Flashcards | StudBud
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Probability Deck 1
Probability Deck 1
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Questions
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Answers
1
At an arts college, the students study the following. How many students study music and art?
25
20
37
12
2
The probability of having a boy is .5, or 50%. What is the probability of having 3 boys in a row?
0.0625
0.25
0.125
0.5
3
Which statement matches the shaded (GREEN) part of the venn diagram?
P\left(A∩B\right)
P\left(A∪B\right)
1-P\left(A\right)
P\left(A\right)+P\left(B\right)
4
Which statement matches the shaded part of the venn diagram?
1-P\left(A\right)
P\left(A\right)+P\left(B\right)
P\left(A∪B\right)
P\left(A∩B\right)
5
You have two game options to pick from. What is the EXPECTED VALUE of game 1?
$15
$18
$12
$10
6
The movie preferences of students vs. teachers are shown below. What % of teachers prefer comedy movies?
40%
30%
45%
20%
7
Given that someone had already meditated, what is the probability that they are calm?
\frac{45}{68}
\frac{8}{29}
\frac{45}{53}
\frac{23}{53}
8
You want to play the game with the higher expected payoff, or higher expected valued. Which game do you play?
Their expected values are the same.
Game 2
Game 1
9
Which statement matches the shaded part of the venn diagram?
P\left(A∩B\right)
1-P\left(A\right)
P\left(A\right)+P\left(B\right)
P\left(A∪B\right)
10
How many people in this data set get their news from television?
55
15
65
40
11
A study collects data on meditation and mood. How many participants meditated and were agitated?
21
29
45
23
12
Using the data table from class, how many men applied to MIT in this year?
735
6,300
693
14,700
13
The movie preferences of teachers and students are shown below. A randomly selected comedy fan is more likely to be...
A teacher
A student
14
Using the same admissions data, which statement is TRUE?
More men than women were admitted.
Men were more likely to be admitted than women.
Twice as many men applied as women.
The rejection rate was higher for women than for men.
15
You have two game options shown below. What is the EXPECTED VALUE of game 2?
$15.90
$78.50
$19
$121
