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Statistics and Probability
Statistics and Probability
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8th grade CCSS stats and probability review
Flashcards
37 cards
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Practice quiz
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Questions
37
Answers
1
What does the y-intercept mean for this trend line in terms of the x and y variables?
30 family members, 1/2 cost of groceries
0 family members
They mean the same thing
0 family members, 0 cost of groceries
2
What district is Katniss Everdeen from in the Hunger Games?
13
4
12
2
3
What belongs to you, but others use it more than you?
shadow
towel
IDK
your name
4
Of all the students surveyed, what is the percent of female students who prefers a pencil?
20%
54%
35%
17%
5
What correlation is this scatter plot?
No correlation
Negative correlation
Nonlinear association
Positive correlation
6
If the store has 120 customers, how many ads did the store put in the newspapers?
14 ads
11 ads
12 ads
90 ads
7
What is the relative frequency of those who prefer to write with a pen that are male students?
51%
71%
68%
52%
8
What is the relative frequency of those without braces who are 8th graders?
78%
53%
81%
51%
9
What is the relative frequency of students who message by Snapchat?
57%
46%
55%
51%
10
How much would groceries cost for family of 4?
$180
$155
$190
$160
11
What percent of Snapchat users are 8th graders?
90%
51%
65%
61%
12
Name this couple. I'll wait...
Zayn Malik and Gigi Hadid
Zayn Malik and Bella Hadid
Gigi Hadid and Harry Styles
Rob Kardashian and Blac Chyna
13
Which music star on the right is Justin Bieber's mentor?
50-Cent
Usher
Snoop Dog
Jay-Z
14
What is the total amount of students surveyed? (purple)
200
175
75
100
15
What is the relative frequency of the total customers who bought pizza?
66%
30%
32%
46%
16
What type of association is this scatter plot?
Nonlinear Association
Linear Association
No Association
Negative Association
17
What percent of water was bought along with a hot dog?
41%
39%
35%
44%
18
What is the relative frequency of the students who have braces?
21%
30%
22%
44%
19
What is the percent of 8th graders surveyed?
51%
81%
19%
55%
20
Of all the males surveyed, what is the percent that prefer to write with a pencil?
46%
71%
29%
31%
21
What is the relative frequency of female students surveyed?
50%
51%
52%
53%
22
What is this type of association for the scatter plot?
positive and negative association
linear association
no association
nonlinear association
23
What is different about these positive linear relationship scatter plots?
Both look the same to me...
Right is a strong linear association
The closeness of the scatter to the trend line
Left is strong linear assoc. & right is a weak linear assoc.
24
Of all the 7th graders, what is the relative frequency of those who have braces?
56%
12%
25%
75%
25
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
26
What correlation is this scatterplot?
straight line correlation
no correlation
postive correlation
negative correlation
27
What is the slope of the trend line for the scatterplot?
45
30
90/2
60/2
28
What is the value of the Hot Dog/Soda cell in the two-way table (yellow)?
96
263
112
50
29
What percent of 7th graders use text message?
53%
45%
47%
65%
30
What is the value of Pizza/No Drink cell in the two-way table? (yellow)
4
124
120
54
31
Are there any outliers in this scatterplot?
Yes
No
32
What app copied the concept of Snapchat stories?
Facebook
Instagram
Snapchat
Pinterest
33
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 0 ads in the newspapers, the store had 30 customers
With 2 ads in the newspapers, the store had 45 customers
With 30 ads in the newspapers, the store had 0 customers
34
What is the name of Michael Phelps' baby?
Boomer
Michael Jr.
Bomber
Buddy
35
Who are the Cavs playing in the 2018 Eastern Conference finals?
Celtics
Warriors
Clippers
Wizards
36
What correlation is this scatter plot?
negative correlation
postive correlation
nonlinear correlation
no correlation
37
Name the giraffe whose pregnancy and birth was live streamed last year.
Augusta
June
May
April
