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Math 7A: Ch. 10 Statistics and Probability Flashcards | StudBud
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Math 7A: Ch. 10 Statistics and Probability
Math 7A: Ch. 10 Statistics and Probability
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Statistics and probability review
Flashcards
26 cards
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Questions
26
Answers
1
Valid or Not valid?
Not Valid. Biased convenience sample.
Valid. Unbiased simple random sample
Valid. Unbiased systematic random sample
Not Valid. Biased voluntary response sample.
2
Valid or Not valid?
Not Valid. Biased voluntary response sample.
Valid. Unbiased simple random sample
Not Valid. Biased convenience sample.
Valid. Unbiased systematic random sample
3
find the probability
1/2
1/6
1/3
1/4
4
Find the probability.
24/24
0/24
11/24
13/24
5
In Star Wars who has the only purple lightsaber?
Anakin
Plo Koon
Obi-wan
Mace Windu
6
Find the SIMPLE probability.
1/4
1/6
1/7
3/1
7
can you find?
1/12
1/4
1/6
1/8
8
How long does it take the Earth to orbit the sun?
A week
365 days
500 days
A month
9
Find.
3/10
1/10
1/4
1/5
10
Surveys.
375
465
285
475
11
Which type of sample is UNBIASED?
Voluntary Response
Convenience
Systematic Random
12
Now knowing there are 36 possible combinations, find the probability of rolling a total of 3.
2.8%
8.3%
5.6%
13
WHAT IS COMPOUND PROBABILITY?
The Probablity that something will happen
the likeliness of two independent events occurring
the likeliness of an event occurring
14
TRUE or FALSE? The Median for SUVs is larger than the median for CARS.
True
False
15
Find the mean of the data below.
3
2.31
2.5
2
16
Valid or Not valid?
Not Valid. Biased convenience sample.
Not Valid. Biased voluntary response sample.
Valid. Unbiased simple random sample
Valid. Unbiased systematic random sample
17
What is the mode of this data?
600
475
512.5
550
18
How do you find Interquartile range?
Q3 - Q1
Q3 + Q1
Q3 - Min
Max - Min
19
Yes or No? Are Luke Skywalker and Princess Leia TWINS?
Yes
No
20
Based on the results of a survey,...
100
55
65
30
21
Which type of sample is BIASED?
Simple Random
Systematic Random
Convenience
22
The principal says that the average number of students in a club is 20. Is it be misleading?
Yes 20 is misleading. The outlier 73 increases the mean
No, it's not misleading.20 is average number of students
23
Why does
MAD
make you mad?
Because it is mean
Because you don't know how to find it.
Because you must find 10 means
Because you must find two means
24
An event consisting of two or more simple events.
sample space
compound event
relative frequency
unfair
25
What is the median of this data?
512.5
450
475
550
26
Find the probability of the COMPOUND event.
1/2
1/18
2/5
1/12
