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Statistics & Probability Review Flashcards | StudBud
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Statistics & Probability Review
Statistics & Probability Review
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#7thgradeprob&stats
Flashcards
28 cards
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Questions
28
Answers
1
If a number cube is rolled twice, what is the probabilty of rolling a sum of 10?
3/12
3/4
8/15
1/12
2
How would you describe this data?
Not Skewed
Skewed Right
None of these
Skewed Left
3
P(red)
5/12
3/12
1/12
2/12
4
We have 4 red, 6 blue and 2 white marbles in a bag. If marbles are
NOT replaced
, find P(blue
then
white)
1/11
1/12
0
8/33
5
Fundamental Counting Principle
120
12
6
22
6
Landing on blue has an equally likely chance as landing on ________
red
blue
green
yellow
7
We have 4 red, 6 blue and 2 white marbles in a bag. If marbles are
NOT replaced
, find P(blue
then
white
then
white)
1/110
2/55
1/12
1/11
8
Which of these are an example of
dependent
events
?
Flipping a coin and rolling a dice
Spinning a spinner and rolling a dice
Choosing a marble, replacing it and drawing another
Choosing a marble, not replacing it and drawing another
9
We have 4 red, 6 blue and 2 white marbles in a bag. Marbles
are replaced
after they are picked. Find P(blue
then
white)
1/12
1/18
1/4
2/3
10
How would you describe this data set?
Skewed Right
Even Distribution
Skewed Left
Symmetrical
11
P (blue)
1/3
5/12
1/4
1/12
12
Which box plot has a greater IQR?
A
Neither
Both
B
13
Use the box plot to answer the question.
D
A
B
C
14
P (blue
or
red)
1/4
5/48
5/8
2/3
15
Calculate the mean of this data:
7
35
5
8
16
Compound Events
1/36
1/1296
4/6
1/72
17
To be an outlier, a value has to be how far away from the upper and lower quartiles?
1.5 x Range
1.5 x IQR
1.5 x Median
1.5 x Q1
18
P (blue
then
red)
8/48
1/8
8/12
5/48
19
True or False: there are 8 outcomes in this tree diagram.
false
true
20
Which data sample has a greater median?
B
A
Neither
Ummmm...
21
How many outcomes are there in this tree diagram?
3
6
2
12
22
What is the probability of rolling two six-sided dice and getting a sum of 8
or
6?
5/36
5/18
1/6
2/9
23
What is sample space?
a free taste of outerspace
a set of all possible outcomes in an experiment
space for an experiment
an experiment with more than two stages
24
What is the IQR?
8
11
14
12
25
Which of the following is NOT a random sample?
b
c
a
d
26
Use the box plot to answer the question.
C
D
B
A
27
Fundamental Counting Principle
220
54
22
48
28
Use the box plot to answer the question.
B
C
D
A
