Class 11 Mathematics Chapter 15 Statistics Quiz 11 (60 MCQs)

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1. Identify the kind of variable in this situation:price of gasoline per gallon throughout American history
2. Which of the following is an example of a parameter?
3. Also known as numerical data.
4. Students in Ms. Multifry's class were surveyed about the number of pets they have. Their responses were recorded below:0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 8. What is the median, maximum, minimum?Is there an outlier? If so, what is the outlier?
5. If median = (mode + 2 mean) K, then K is equal to
6. Is the following a parameter or a statistic?In a survey of a sample of high school students, 43% said that their mother has taught them the most about managing money.
7. Determine whether the numerical value is a parameter or statistic:Sixty-two of the 97 passengers aboard the Hindenburg airship survived its explosion.
8. Which tool is commonly used by data scientists for machine learning and AI applications?
9. It is a plane curve consisting of all points that have the same distance from a fixed point called center. Which word is being described in the statement?
10. Test the difference between group means after any other variance in the outcome variable is accounted for
11. Determine whether the data set is a population of a sample:The amount of energy collected from every wind turbine on a wind farm.
12. Any characteristic of an individual that can take different values for different individuals.
13. If you want to test whether the average height of two groups is the same, which statistical test should you use?
14. Find the mode of 34, 48, 87, 56, 87, 51, 29
15. Classify which of the following is a Qualitative data.
16. "I trust him more than 100 percent" is an example of used statistics.
17. Identify whether the experiment involves a discrete or a continuous random variable.Collecting data about the mileage per liter of a certain brand and model of a car
18. An extreme value in a data set that is either much larger or much smaller than all the other values.
19. In observation method, the person/object to be observed is called:
20. Given the set 2, 4, 1, 3, 5, 1, 6. What is the median?
21. What is the main goal of the lesson regarding data?
22. What does UKD mean?
23. A question that can be answered by collecting data that vary.
24. Data observation are different each time they are collected is called
25. Find the mean.(1, 2, 3, 4, 5, 6)
26. What do you need to solve for the mode of grouped data?
27. How data is spread out
28. A sample in which every member of the population has an equal chance of being selected.
29. This statistical instrument is also called face-to-face survey.
30. What are characteristics that cannot be defined by a number, such as shape or color?
31. The number of times the observation has occurred/recorded in an experiment or study.
32. Given the table of students, describe a procedure to filter out only those students who belong to the OBC category.
33. It is a collection of data from every element in a population
34. How would you describe something that has "grown exponentially" ?
35. Who is regarded as the father of biostatistics
36. The POPULATION in statistics is best described by .....
37. One of the given is not the Task of Statistics
38. What is the role of a sample size in statistics data collection?
39. You cannot use Statistics in Education.
40. Describes a situation in which every possible outcome has an equal chance
41. The middle value when a data set is ordered from least to greatest.
42. If you want to examine the linear relationship between Petal.width and Sepal.length, which matrix would you compute?
43. Ogive is the graph of:
44. What is sample space?
45. What is the process of analyzing data to uncover patterns and trends in data sets?
46. Ms. Perez, a statistics teacher, wants to analyze the heights of students in her school. She randomly selects a sample of 50 students and measures their heights. She plans to use the Central Limit Theorem (CLT) to draw conclusions for her study. Which test-statistic would be appropriate to use?
47. Population or Sample?A factory overseer selects 40 threaded rods at random from those produced that week at the factory, then she tests their tensile strength.
48. The square root of the average squared deviations from the mean of scores in a distribution; measure of variability.
49. What is a quantitative variable that could have an infinite number of values?
50. What is an example of a nominal data?
51. Suppose a researcher is concerned with a nominal scale that identifies users versus nonusers of bank credit cards. The measure of central tendency appropriate to this scale is the
52. Ken wants to compare how many hours a week that sixth graders spend doing mathematics homework to how many hours a week that eleventh graders spend doing mathematics homework. He randomly selects ten sixth graders and ten eleventh graders and records how many hours each student spent on mathematics homework in a certain week.What study is described?
53. The covariance between two variables x and y is 8.4 and their variances are 25 and 36 respectively. Calculate Karl Pearson's correlation coefficient between them.
54. The mean of a set of 3 numbers is 100. If 85 is removed from the set, what is the new mean?
55. What is the nature of data that can be distinguished by some nonnumeric characteristics?
56. Solution space of the inequalities 2x + y < 10 and x-y < 5:(i) includes the origin (ii) includes the point (4, 3) Which one is correct?
57. It is a numerical description of a sample characteristic
58. Find the class mark of class 135-155.
59. If log$_{2}$(x) = 4, what is the value of x?
60. "There are three degreesof lies lies, damned lies and statistics" . This is said by