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Unit Test Practice Statistics Unit

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Q1: Find the mean. 6, 9, 2, 4, 3, 6, 5 a) c) b)d) 6 5 35 7

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Correct! Great Job! Go on to question… 12345 678910 11 16 18 19 20 23 25 12 13 1415 17 21 22 24

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Incorrect Please review your notes & try again. Go on to question… 12345 678910 11 16 18 19 20 23 25 12 13 1415 17 21 22 24

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Q2: Find the median. 1, 16, 9, 12, 18, 9, 5, 14, 7 a)c) b)d) 18 12 9 5

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Q3: Find the mode. 8, 3, 9, 4, 6, 7, 5 a)c) b)d) 9 none 7 5

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Q4: Find the range. 157, 124, 157, 124, 157, 139 a)c) b)d) 18 33 15 30

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Q5: Find the median. 1, 7, 14, 3 a)c) b)d) 10 5 7 14

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Q6: __________ is a question that has many different or variable answers. a) b) A Statistical question A Non-statistical question

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Q7 How old will you turn on your next birthday? Is an example of which question? a)b) StatisticalNon-statistical

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Q8: Which number is the outlier of the data provided: 3, 5, 2, 8, 0, 35, 7, 9, 2, 1 Q8: Which number is the outlier of the data provided: 3, 5, 2, 8, 0, 35, 7, 9, 2, 1 a)c) b)d) 3 1 2 35

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Q9: An outlier can affect which measure of center more, the mean or the median? a)b) meanmedian

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Q10: The mean of the data set is 63. What is the missing value: 69, 70, x, 35, 68 a)c) b)d) 73 71 72 67

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Q11: What is the range of the data? a)c) b)d) 1 4 5 3

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Q12: What is the mode? a)c) b)d) 3 none 4 3 and 4

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Q13: The values 47-52 represent what? Q13: The values 47-52 represent what? a)c) b)d) A Gap A Peak A cluster An Outlier

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Q14: What is the number of observations from the dot plot provided? Q14: What is the number of observations from the dot plot provided? a) b) c) d) 18 17 19 20

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Q15: What is the range of minutes on hold? a)c) b)d) 4-5 5 9 10

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Q16: What is the most common mass of the fish? a) c) b)d) 12-14 14-16 10-12 16-18

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Q17: What is the Interquartile Range of the following set of data? 1,2,5,6,7,9,12,15,18,19,27 a)b) c)d) 5 13 18 9

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Q18: what is the Lower extreme of this box plot? a)c) b)d) 10 40 22 69

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Q19: What is the median? a)c) b)d) 3.5 4.5 2.2 4.0

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Q20: Find the mean absolute deviation of the number of contacts friends have stored in their cell phone. 52, 48, 60, 55, 59, 54, 58, 62 a) b) c) d) 3 6 5 4

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Q21: Find the mean absolute deviation of the maximum speeds of eight rollercoaster rides. 88, 40, 60, 66, 80, 48, 58, 72 a)c) b)d) 13 12 10 20

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Q22: What percent of the histogram does the interval 11-21 represent? a)c) b)d) About 12% About 5% About 300% About 25%

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Q23: On a bike trip, we rode 10 kilometers on day 1, 18 kilometers on day 2, 20 kilometers on day 3, 15 kilometers on day 4, and 18 kilometers on day 5. What was the median distance we rode? a)b) c)d) 1510 18 20

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Q24: The rainfall for the second week in April was as follows (in inches): 1, 0, 2.5, 0.4, 0.8, 3, 0. What was the mean daily rainfall that week? Q24: The rainfall for the second week in April was as follows (in inches): 1, 0, 2.5, 0.4, 0.8, 3, 0. What was the mean daily rainfall that week? a)c) b)d) 2.5 1 1.1 2

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Q25: Ms. Raymond’s ten honor students scored the following grades on the pop quiz: 83, 90, 98, 97, 88, 98, 95, 97, 98, 100 What is the mode score? a)c) b)d) No mode 96 98 98 & 97

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