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Statistics + Probability Full Review
Statistics + Probability Full Review
33 terms
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Alberta Math 9 Statistics and Probability
Flashcards
33 cards
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Practice quiz
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Questions
33
Answers
1
Which represents this set of numbers?
1, 1.2, 1.4, 3.4
100%, 50%, 25%, 75%
1%, 50%, 25%, 75%
100, 0.5, 0.25, 0.75
2
I want to find out how many cars drive down my street each day. What would be the best sample?
Count cars that drive by from 8 PM to 9 PM
Count cars that drive by in 20 minute intervals every hour
Watch for 24 hours and count every car that drives by
Count cars that drive by from 8 AM to 9 AM
3
I want to find how many of 30 students need help with their homework. I should use a...
Population
Sample
4
I ask my class who their favorite hockey team is the day after Montreal wins the cup. This is a
Timing problem
Time problem
Cost problem
Cultural sensitivity problem
5
How many people were surveyed in this study?
20
100
10
40
6
What sampling method is described below?
Convenience Sampling
Stratified Random Sampling
Simple Random Sampling
Interval Sampling
7
I got 100 on all tests this year. I expect 100 on the next. Which is NOT an assumption I make?
I studied the same amount for all tests
All tests are equally difficult
The cafeteria is serving hot dogs that day
I am feeling as well as I did for the other tests
8
The sample was chosen by selecting every 5th person. What kind of sampling is this?
Cluster
Convenience
Systematic
Random
9
What is the probability of landing on an EVEN number?
1
0.5
0.2
0.16
10
How many people like Drama OR SciFi?
20
5
1
4
11
What sampling method is described below?
Convenience Sampling
Simple Random Sampling
Stratified Random Sampling
Interval Sampling
12
I ask my students to do an hour long survey during their lunch break. This is a...
Time problem
Timing problem
Privacy problem
Use of language problem
13
What is the experimental probability of getting Red OR Green?
73 %
40 %
15 %
10 %
14
I want to find out what percent of students in my school like pizza. What's the best sample?
Ask 5 boys and 5 girls from each class
Ask all students in Home Economic class
Ask students in the cafeteria on pizza day.
Ask all the boys in my school
15
I ask my class "Do you prefer boring country music or exciting rock music?". This is a...
Use of language problem
Timing problem
Cost problem
Privacy problem
16
What sampling method is described below?
Self-Selected Sampling
Cluster Sampling
Interval Sampling
Stratified Random Sampling
17
What is the experimental probability of getting yellow?
11/15
7/11
11/25
1/5
18
What is the probability of landing on a FACTOR of 6? Answer in simplest form.
1/3
1/6
2/3
1
19
I want to find out how many students at my school like volleyball. What is the population?
All students in my city
All students who are on a volleyball team
All students in my class
All students who go to my school
20
What sampling method is described below?
Self-Selected Sampling
Interval Sampling
Stratified Random Sampling
Convenience Sampling
21
What is the probability of landing on BLUE
16.7 %
20 %
50 %
83.3 %
22
What is the probability of landing on a PERFECT SQUARE Number?
1 / 6
2 / 3
1 / 3
1 / 2
23
What percent of people surveyed like Romance movies?
60 %
30 %
13 %
6 %
24
What sampling method is described below?
Simple Random Sampling
Stratified Random Sampling
Cluster Sampling
Interval Sampling
25
I send a survey out to all families in my school community by mail. This is a...
Cost problem
Cultural sensitivity problem
Timing problem
Use of language problem
26
I ask my students what they got for Christmas. This is a...
Cultural Sensitivity problem
Time problem
Use of language problem
Timing problem
27
What is the probability of landing on a 7?
0
7
1
1/2
28
DJ was late every day this year. His teacher predicts he'll be late tomorrow. This is...?
Random Guess
Experimental Probability
Theoretical Probability
Subjective Judgement
29
I ask my class to raise their hand if they failed the last test. This is a...
Use of language problem
Privacy problem
Timing problem
Cost problem
30
Mary thinks she has a 50% of winning a coin toss. This is...?
Subjective Judgement
Theoretical Probability
Experimental Probability
31
What is the probability of getting BLUE?
4 %
25 %
40%
16 %
32
Write as a fraction in lowest terms
1 / 3
13 / 50
0.26
26 / 100
33
I want to find out how many of the 500 students in my school want a pajama day. Should I do a;
Sample
Census
