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