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Statistics and Probability
Statistics and Probability
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8th grade CCSS stats and probability review scatter plots two-way tables
Flashcards
49 cards
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Practice quiz
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Questions
49
Answers
1
What is the name of Michael Phelps' baby?
Buddy
Bomber
Boomer
Michael Jr.
2
Using the two points what is the rate of change (slope) of the line of best fit for this graph?
3/2
-3/2
-2/3
2/3
3
What does the y-intercept mean for this trend line in terms of the x and y variables?
0 family members, 0 cost of groceries
0 family members
30 family members, 1/2 cost of groceries
They mean the same thing
4
Name this couple. I'll wait...
Gigi Hadid and Harry Styles
Zayn Malik and Bella Hadid
Rob Kardashian and Blac Chyna
Zayn Malik and Gigi Hadid
5
What is the number of those who prefer to write with a pen that are male students?
49
75
53
22
6
What percent of 7th graders use text message?
47%
45%
53%
65%
7
What is different about these positive linear relationship scatter plots?
Right is a strong linear association
Left is strong linear assoc. & right is a weak linear assoc.
The closeness of the scatter to the trend line
Both look the same to me...
8
Determine the prediction equation using the two labeled points on the graph
y=7/5x-.5
y=5/7x+.5
y=7/5x+.5
y=5/7x-.5
9
How many were surveyed?
199
107
279
269
10
What correlation is this scatter plot?
Nonlinear association
Negative correlation
No correlation
Positive correlation
11
How many boys were surveyed?
3
5
15
10
12
The slope is 45/1. What does that mean in terms of # of family members & cost of groceries?
For every 45 family members, the cost of groceries is $1
For every 1 family member, the cost of groceries is $45
13
How many of the students surveyed were in 8th grade?
225
326
160
166
14
Which is your favorite?
None of the above
Chocolate
Vanilla
Strawberry
15
What type of association is this scatter plot?
Negative Association
Nonlinear Association
Linear Association
No Association
16
What app copied the concept of Snapchat stories?
Instagram
Facebook
Snapchat
Pinterest
17
Identify which line is the line of best fit for the scatter plot.
A
None
C
B
18
Of all the students surveyed, what is the number of female students who prefers a pencil?
75
22
49
26
19
How many people surveyed were not adults?
107
199
150
67
20
How many 7th graders don't have braces?
160
120
40
135
21
What correlation is this scatterplot?
no correlation
postive correlation
straight line correlation
negative correlation
22
How many students got pizza?
182
58
120
4
23
How many teens don't like chocolate?
61
12
45
16
24
What percent of Snapchat users are 8th graders?
90%
65%
61%
51%
25
What is the relative frequency of students who message by Snapchat?
55%
51%
57%
46%
26
What was the most desired flavor for adults?
Vanilla
Tie
Chocolate
Neither
27
If the store has 120 customers, how many ads did the store put in the newspapers?
14 ads
12 ads
90 ads
11 ads
28
What correlation is this scatter plot?
negative correlation
no correlation
nonlinear correlation
postive correlation
29
What is the number of female students surveyed?
49
26
50%
75
30
Identify which line is the line of best fit for the scatter plot.
None
B
A
C
31
What belongs to you, but others use it more than you?
IDK
your name
shadow
towel
32
How many children were surveyed?
15
22
77
40
33
What is the slope of the trend line for the scatterplot?
90/2
60/2
45
30
34
How many students were surveyed?
19
20
10
9
35
Are there any outliers in this scatterplot?
Yes
No
36
How many waters were bought along with a hot dog?
20
62
58
50
37
Who is the voice of this character in the upcoming movie?
Chris Evans
Ryan Renolds
Chris Pratt
Bradley Cooper
38
What is the rate of change (slope) for the line of best fit for this graph?
3/2
-3/2
-2/3
2/3
39
What is the value of Pizza/No Drink cell in the two-way table? (yellow)
54
4
120
124
40
How many students surveyed have braces?
40
326
71
31
41
What does the y-intercept of the trend line shown mean in terms of # of ads and # of customers?
With 0 ads in the newspapers, the store had 0 customers
With 30 ads in the newspapers, the store had 0 customers
With 0 ads in the newspapers, the store had 30 customers
With 2 ads in the newspapers, the store had 45 customers
42
What is this type of association for the scatter plot?
no association
linear association
positive and negative association
nonlinear association
43
What is the total amount of students surveyed? (purple)
175
200
75
100
44
Which two points would you use to draw the line of best fit for the scatter plot?
A and B
A and D
C and D
C and B
45
Which music star on the right is Justin Bieber's mentor?
Jay-Z
Snoop Dog
Usher
50-Cent
46
What is the value of the Hot Dog/Soda cell in the two-way table (yellow)?
112
96
50
263
47
What district is Katniss Everdeen from in the Hunger Games?
12
2
4
13
48
How much would groceries cost for family of 4?
$180
$190
$155
$160
49
Name the giraffe whose pregnancy and birth was live streamed last year.
June
May
Augusta
April
