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Probability and Statistics Review Flashcards | StudBud
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Probability and Statistics Review
Probability and Statistics Review
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Questions
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Answers
1
How would you present the data of flipping 2 coins to find the probability?
Tree diagram
Venn Diagram
Pie Chart
Two-step Experiment
2
What is the maximum number of candy pieces purchased?
10
21
34
8
3
What is the
LQ
for { 2, 3, 3, 3, 5, 8, 9, 9, 9, 10, 15 } ?
2
3.5
3
5
4
What is the
median
of { 9, 12, 15, 2, 9, 8, 10 }?
9
12
8
9.56
5
How many females were surveyed?
28
65
51
66
6
As the number of classes missed increases, exam scores _________________
decrease by a small amount
decrease by a large amount
increase
don't change
7
Which of the following is NOT a random sample?
b
c
d
a
8
What is the
mean
of { 9, 12, 15, 2, 9, 8, 10 }?
65
9.29
9
9.56
9
Landing on blue has an equally likely chance as landing on ________
green
red
blue
yellow
10
On a number cube, what is P(odd number)? Simplify!
1/2
1/3
4/6
11
How many people were surveyed?
33
20
150
31
12
P (event) = number of favorable outcomes
divided by 1
multiplied by the number of possible outcomes
I don't know
divided by number of possible outcomes
13
Probability is an event between what to numbers?
0 - 1
10-20
1-10
0 - 100
14
What do we call the whole group we are interested in learning about?
a
c
b
15
What is the
U
Q
for { 2, 3, 3, 3, 5, 8, 9, 9, 9, 10, 15 } ?
9
15
8
8.5
16
As the temperature increases, sales _______________________
stay the same
increase
decrease
17
Experimental probability is based on experimental data.
False
True
18
P(red)
1/12
2/12
3/12
5/12
19
What percent of students scored 66 or more in the test?
50%
25%
75%
33%
20
What is the relationship in the scatter plot below?
not enough information
positive
negative
no relationship
21
What is the
median
for { 2, 3, 3, 3, 5, 8, 9, 9, 9, 10, 15 } ?
5
8
8.5
9
22
Find the median for this sample.
1
8
12
7
23
What is the
range
of { 9, 12, 15, 2, 9, 8, 10 }?
13
2 to 15
15
2
24
Independent events are when...
a first event does not affect a second event..
events won't help each other out.
one event affects the outcome of another event
P(events)
25
What is the
IQR
for { 2, 3, 3, 3, 5, 8, 9, 9, 9, 10, 15 } ?
9
3
6
3 to 9
26
Students get Excellence if they score 90 or more. What percentage of students got Excellence?
50%
75%
100%
25%
27
On Tuesday, what was the highest temperature?
80*F
75*F
66*F
78*F
28
How many students bought candy?
34
8
10
14
29
Theoretical probability is based on experimental data.
True
False
30
What is the
mode
for the number of matches per box?
49
4
50
7
31
A die has been rolled 60 times. Is this an example of Theoretical or Experimental Probability?
Theoretical
Experimental
32
Which city has the greatest range?
All have the same range
New York
San Antonio
Seattle
33
P ' (yellow)
11/12
1/12
1/4
1/2
34
How many match boxes contained 48 matches or less?
2
3
5
4
35
What is the probability of rolling a die and getting an even number?
1/6
1/2
3/6
1/5
