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DE Stats Test 2 Review Version 2 Flashcards | StudBud
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DE Stats Test 2 Review Version 2
DE Stats Test 2 Review Version 2
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Answers
1
Is the event "choosing red marble" a simple event?
Yes
No
2
Is the event "choosing a yellow marble" a simple event?
No
Yes
3
Find the probability:
98%
94%
96%
100%
4
How many different groups of 4 students can be formed from a total of 10 students?
_{10}P_4
_{10}C_4
5
What is the sample space?
{ (R1, R2, R3, R4, R5, R6, G1, G2, G3, G4, G5, G6, B1, B2, B3, B4, B5, B6 }
{ (R1, R2, R3, G1, G2, G3, B1, B2, B3 }
{ 1, 2, 3, 4, 5, 6 }
{ red, green, blue }
6
Which formula would you use?
binomcdf
geomcdf
1 - binomcdf
binompdf
7
Which formula would you use?
1 - binomcdf
binomcdf
geomcdf
binompdf
8
What is the probability that exactly 3 students from each class will be chosen?
0.352
0.138
0.019
0.255
9
If one student is randomly selected, what is the probability that the student does not prefer
grapes or strawberries
?
0.28
0.48
0.52
0.20
10
What is the probability of
A and B
occurring?
\frac{1}{208}
\frac{17}{51}
\frac{1}{52}
\frac{1}{4}
11
How many 4 digit PIN numbers can be formed using only the digits 0 - 5 ?
360
15
840
1296
12
Decide whether or not this is a binomial experiment:
Yes
No
13
Find the probability:
0.0134
0.0035
0.9965
0.00042
14
Find the probability:
0.1750
0.1877
0.1352
0.1184
15
Find the probability:
3.8%
68%
4.8%
52%
16
How many different ways can the first 3 students line up?
1,848
16,420
24,360
4,060
17
What is the
expected value (mean) of the prize money
?
$7.50
$1.00
$5.00
$0.25
18
Is the random variable discrete or continuous?
Discrete
Continous
19
Decide whether or not this is a binomial experiment:
Yes
No
20
For the purposes of this DE Statistics class, are the events "Passes" and "Fails" the class mutually exclusive
Yes
No
21
How many different lunch combinations are possible if you can only pick 1 Main Dish, 1 Side, and 1 Dessert?
12
30
24
36
22
The sum of all the probabilities in a probability distribution is also known as:
Expected Solution
Standard Deviation
Expected Value
Standard Error
23
Decide whether or not this is a binomial experiment:
No
Yes
24
The sum of all the probabilities in a probability distribution is:
1.5
1
0.5
0.98
