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Math 7A - Chapter 10 Statistics and Probability Flashcards | StudBud
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Math 7A - Chapter 10 Statistics and Probability
Math 7A - Chapter 10 Statistics and Probability
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Questions
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Answers
1
Find the possible number of outcomes.
9
27
18
8
2
A teacher put names in a hat and selected 5 names without looking. What type of sample is this?
Systematic Random Sample
Simple Random Sample
Biased Sample
Convenience Sample
3
Find the probability.
1/2
1/4
1/16
1/8
4
Compare the experimental probability to the theoretical probability.
experimental probability < theoretical probability
experimental probability = theoretical probability
experimental probability > theoretical probability
experimental probability ⪯ theoretical probability
5
What is the mode of the data?
no mode
55
35
0
6
What is the median of the data?
25
26
20
52
7
What are the mean and mean absolute deviation of the data?
mean = 5.75, mean absolute deviation = 1.2
mean = 5.75, mean absolute deviation = 1.5
mean = 6.25, mean absolute deviation = 1.2
mean = 6.25, mean absolute deviation = 1.5
8
A number cube is rolled. What are the probability & likelihood of it landing on an odd number?
1/6; equally unlikely
0; impossible
1/2; equally likely
1; certain
9
Which measure of variability does not correspond to the data?
Median = 76
Third Quartile = 84
Range = 90
First Quartile 65.5
10
What inference can be supported by the double box plot?
Medians are equal, the variability in the top is greater.
The data is symmetric in both box plots.
Q3 and Q1 in the top are both less than those of the bottom.
Range of the data in the top is double that of the bottom.
11
What is the mean of the data?
27
25.75
55
24.75
12
The company wants to claim it has a low cell phone return rate. Choose the best measure to use.
median
mode
mean
mode and mean
13
You are 2/3 done with your 7th grade year...what are you going to do to keep your grades high?
Take more naps!
Continue to study!
Continue to push myself to be my best!
Play more video games!
