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