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Statistics Quiz 21 (25 MCQs)

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1. What is the meaning of Statistics?
2. Collection of data is a feature of statistics in which sense?
3. What is another math term for "middle"
4. Two branches of statistics are _____ and _____
5. Determine whether the event is impossible, unlikely, as likely as not, likely, or certain. You flip a fair coin and the coin will land heads up.
6. A representative set of a population, to gain information from a large group
7. The mean of 5, 9, x, 17 and 21 is 13, then find the value of x
8. The plant has grown 4 cm since yesterday.
9. Why do we randomly select our samples?
10. Let m be the mid point and b be the upper limit of a class in a continuous frequency distribution. The lower limit of the class is
11. There is no logical order in the _____
12. Variables which are numerical in nature
13. At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode .12, 10, 10, 10, 13, 12, 11, 13, 10
14. To study the amount of time students spend doing homework each day, use a random number generator to select 25 freshmen, 25 sophomores, 25 juniors, and 25 seniors to survey.
15. Letter grades (A, B, C, D, or F) that an English 100 class received on their essays. what type of variable is this?
16. Use the following information and the Empirical Rule to estimate the answer.The ages of golfers are normally distributed, with a mean of 38 and a standard deviation of 4.Find the proportion of golfers that are older than 42.
17. What is the mean of the following data set? 133, 140, 98, 98, 140, 119, 119
18. Mrs. Trahan samples her class by picking 10 numbers from her hat and each number is assigned to a student. This is _____ random sampling.
19. Exit poll that shows the chances of winning the number of seats by different parties in 2014 election shown on T. V. For the viewer is
20. What is the first step when creating a box and whisker plot?
21. A portion or part of a population is called a
22. The tendency of individual measures among a set of measures to cluster around a central value is known as
23. What is the mode? 500, 600, 700, 800, 500, 600
24. The null and alternative hypothesis can be the same.
25. Find the range 34 27 49 38 67
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