This quiz works best with JavaScript enabled. Home > Cbse > Class 11 > Science > Mathematics > Class 11 Mathematics Chapter 15 Statistics – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Mathematics Chapter 15 Statistics Quiz 9 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Compute the curl of vector field $F\left(x, y, z\right)=\left(x^2y\right)i+\left(2y^3z\right)j+\left(3z\right)k$ A) $\left(-2y^3\right)i-\left(x^2\right)j$. B) $\left(-2y^3\right)j-\left(x^2\right)k$. C) $\left(-2y^3\right)i-\left(2x\right)k$. D) $\left(-2y^3\right)i-\left(x^2\right)k$. Show Answer Correct Answer: D) $\left(-2y^3\right)i-\left(x^2\right)k$. 2. What should you do to the values in the column 'Ex-servicemen' according to the instructions? A) Replace N by No and Y by YES. B) Replace Y by No and N by YES. C) Replace N by YES and Y by No. D) Leave them unchanged. Show Answer Correct Answer: A) Replace N by No and Y by YES. 3. What is a complete collection of all elements to be studied called? A) Data. B) Population. C) Sample. D) Analysis. Show Answer Correct Answer: B) Population. 4. What is the mode of the given set:5, 5, 6, 9, 10, 4 and 7 A) 9. B) 10. C) 6. D) 5. Show Answer Correct Answer: D) 5. 5. Consider the scores of the top 10 qualifiers for a scholarship:92, 93, 95, 90, 89, 92, 94, 95, 91 and 96. What is the range of the scores? A) 8. B) 9. C) 7. D) 6. Show Answer Correct Answer: C) 7. 6. A variable that quantifies an element of a population. A) Quantitative, or Numerical, Variable. B) Qualitative, or Attribute, or Categorical, Variable. C) All the above. D) None of the above. Show Answer Correct Answer: A) Quantitative, or Numerical, Variable. 7. Which measure of central tendency is generally used in determining the size of the most sealable shoes in a department store? A) Mode. B) Range. C) Median. D) Mean. Show Answer Correct Answer: A) Mode. 8. This is the process of performing scientific to determine something. This method of data gathering is usually conducted in laboratories where specimens are subjected to some aspects control to find out cause and effect relationship. A) Observation. B) Experimentation. C) Survey. D) Questionnaire. Show Answer Correct Answer: B) Experimentation. 9. Common examples of measures of statistical dispersion are ..... A) Mean, median and mode. B) Variance, standard deviation, and interquartile range. C) None of the above. D) All of the above. Show Answer Correct Answer: B) Variance, standard deviation, and interquartile range. 10. These are questions that require the respondent to elaborate their points in a free form manner? A) Closed questions. B) Open-ended questions. C) Multiple-choice questions. D) None of the above. Show Answer Correct Answer: B) Open-ended questions. 11. What is the standard deviation of the probability distribution below? A) 0.88. B) 0.86. C) 0.85. D) 0.87. Show Answer Correct Answer: D) 0.87. 12. What is the sample space in picking a card in a standard deck of cards? A) 2. B) 36. C) 6. D) 52. Show Answer Correct Answer: D) 52. 13. Which among the statistical process includes the process of drawing out generalizations and conclusions based on the collected data, presented, and analyzed? A) Collection. B) Organization and Presentation. C) Analysis. D) Interpretation. Show Answer Correct Answer: D) Interpretation. 14. In a class, half of the students took Geography while three-fifths took Statistics. If 8 students took both and four students did not choose any of the two subjects, how many students are there in class? A) 35. B) 45. C) 30. D) 40. Show Answer Correct Answer: D) 40. 15. What is the Power of a test? A) The probability that we correctly reject a false null hypothesis. B) To reject the null, when the null is tree. C) The probability that we correctly accept a true null hypothesis. D) A strong force. Show Answer Correct Answer: A) The probability that we correctly reject a false null hypothesis. 16. ..... is the difference between the largest and the smallest figure in a set of figures. A) Median. B) Mean. C) Mode. D) Range. Show Answer Correct Answer: D) Range. 17. What is the first step in the data science process? A) Collecting data from various sources. B) Visualizing the data. C) Analyzing and interpreting the data. D) Cleaning the data. Show Answer Correct Answer: A) Collecting data from various sources. 18. What is Newton's First Law of Motion also known as? A) Law of Gravity. B) Law of Inertia. C) Law of Action and Reaction. D) Law of Conservation of Energy. Show Answer Correct Answer: B) Law of Inertia. 19. The arithmetic average of a distribution of numbers. A) Range. B) Median. C) Mean. D) Mode. Show Answer Correct Answer: C) Mean. 20. How often something occurs divided by the total A) Compound event. B) Tree diagram. C) Relative frequency. D) Sample space. Show Answer Correct Answer: C) Relative frequency. 21. Which of the following is the other term used for average? A) Mode. B) Median. C) Mean. D) Range. Show Answer Correct Answer: C) Mean. 22. The following are the ages of the students in a literature class:24, 30, 18, 28, 32, 18, 20. What measure will determine the age gap of the oldest and youngest student? A) Median. B) Mode. C) Mean. D) Range. Show Answer Correct Answer: D) Range. 23. Editing of data is an intermediate step between collection of data and: A) Registration of data. B) Interpretation of data. C) Presentation of data. D) Analysis of data. Show Answer Correct Answer: C) Presentation of data. 24. What is the term for a single individual within a population? A) Sample. B) Parameter. C) Statistic. D) Unit. Show Answer Correct Answer: D) Unit. 25. Frequency is the number of times a particular data value occurs A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 26. It shows the specific categories being compared in a graph. A) Label. B) X-axis. C) Chart. D) Y-axis. Show Answer Correct Answer: D) Y-axis. 27. What is the process called when plants make their own food using sunlight? A) Photosynthesis. B) Decomposition. C) Respiration. D) Transpiration. Show Answer Correct Answer: A) Photosynthesis. 28. Calculate the mean of this set of numbers:3, 8, 5, 7, 9 and 4 A) 8. B) 5. C) 6. D) 7. Show Answer Correct Answer: C) 6. 29. This sampling technique is ideal if every element of the population can be considered identical. A) Simple Random Sampling Technique. B) Stratified Random Sampling Technique. C) Cluster Random Sampling Technique. D) Systematic Random Sampling Technique. Show Answer Correct Answer: A) Simple Random Sampling Technique. 30. A collection, or set, of individuals or objects or events whose properties are to be analyzed. A) Sample. B) Array. C) Population. D) Data. Show Answer Correct Answer: C) Population. 31. It involves describing the data using statistical methods and procedures. A) Analysis. B) Organization. C) Collection. D) Interpretation. Show Answer Correct Answer: A) Analysis. 32. What is the purpose of cost-volume profit analysis? A) To develop new products. B) To design marketing strategies. C) To analyze the relationship between production and sales. D) To calculate employee salaries. Show Answer Correct Answer: C) To analyze the relationship between production and sales. 33. Which of these measures can be used to present an average for data? A) Standard deviation, range and mean. B) Mean, beta and normal distribution. C) Median, range, normal distribution. D) Mean, median and mode. Show Answer Correct Answer: D) Mean, median and mode. 34. What is the formula for the nth term of a geometric sequence with first term $a_1$ $r$ A) $a_n = a_1 \times r^{n-1}$. B) $a_n = a_1 + r(n-1)$. C) $a_n = a_1 + n \times r$. D) $a_n = a_1 \times n \times r$. Show Answer Correct Answer: A) $a_n = a_1 \times r^{n-1}$. 35. The mean of a data set is 20, and the standard deviation is 5. What is the z-score of a data point that is 25? A) 5. B) 1. C) -1. D) 0. Show Answer Correct Answer: B) 1. 36. To have exactly the same chance of occurring A) Equally likely. B) Random. C) Certain. D) Possible. Show Answer Correct Answer: A) Equally likely. 37. What is the purpose of using the pivot chart report option in MS-Excel when analyzing student data? A) To create a summary table for variance only. B) To visually represent summary data from a pivot table. C) To sort data alphabetically. D) To remove duplicate entries. Show Answer Correct Answer: B) To visually represent summary data from a pivot table. 38. Which of the values correlates high correlation between variables? A) R = +0.5. B) R = 2. C) R =-0.75. D) R = +0.25. Show Answer Correct Answer: C) R =-0.75. 39. ..... shows direction of the linear relationship between variables A) Correlation. B) Covariance. C) Anova. D) Standard Deviation. Show Answer Correct Answer: B) Covariance. 40. Find the median of the run made by the player in 5 T20 matches55, 44, 21, 35, 45 A) 35. B) 55. C) 44. D) 21. Show Answer Correct Answer: C) 44. 41. Statistics is also known as statistical measure for sample. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 42. The mean is the ..... A) Average. B) Mode. C) Middle number. D) Sum of the numbers. Show Answer Correct Answer: A) Average. 43. It is an arrangement from highest to lowest or from lowest to higher A) Data. B) Sample. C) Population. D) Array. Show Answer Correct Answer: D) Array. 44. Given the data set:2, 4, 6, 8, 10, find the median. A) 6. B) 8. C) 4. D) 12. Show Answer Correct Answer: A) 6. 45. What are the four variables present in the information of the 10 students as described in the table? A) Height, Weight, Blood group, City. B) B.Sc. percentage, Entrance marks, University, Category. C) Name, Age, Gender, Address. D) Roll number, Subject, Grade, Teacher. Show Answer Correct Answer: B) B.Sc. percentage, Entrance marks, University, Category. 46. Which type of data is included in statistics A) Qualitative data. B) Quantitative data. C) Qualitative and quantitative. D) All of the above. Show Answer Correct Answer: B) Quantitative data. 47. For a data set with median M, it is the median of the data values less than M. A) Outliers. B) First Quartile. C) Third Quartile. D) Interquartile Range. Show Answer Correct Answer: B) First Quartile. 48. STATISTICAL OR NON-STATISTICAL:Who is your Mathematics teacher? A) STATISTICAL. B) NON-STATISTICAL. C) All the above. D) None of the above. Show Answer Correct Answer: B) NON-STATISTICAL. 49. Find the mode:3.8, 4.2, 4.0, 4.2, 4.2 A) 4.0. B) 3.8. C) 4. D) 4.2. Show Answer Correct Answer: D) 4.2. 50. What is the expected outcome of learning logical reasoning in this course? A) To make decisions based on logic and analysis. B) To memorize mathematical formulas. C) To write essays. D) To develop new languages. Show Answer Correct Answer: A) To make decisions based on logic and analysis. 51. The local weather forecaster said that there is 40% chance of rain tomorrow. What is the chance that it will not rain tomorrow? A) 60. B) 0.60. C) 40. D) 0.40. Show Answer Correct Answer: B) 0.60. 52. The middle number of a set of values that are ordered from least to greatest A) Mean. B) Range. C) Median. D) Mode. Show Answer Correct Answer: C) Median. 53. In order to find the median, you must arrange the numbers in descending order first A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 54. What is the main emphasis of the Business Mathematics and Statistics course? A) Advanced Calculus. B) History of Mathematics. C) Philosophy of Mathematics. D) Use of arithmetic, algebra, ratio, proportion, and graphing in business applications. Show Answer Correct Answer: D) Use of arithmetic, algebra, ratio, proportion, and graphing in business applications. 55. The parameter is a number describing the: A) Sample. B) Survey. C) Population. D) Percent. Show Answer Correct Answer: C) Population. 56. ..... is the number or figure that appeared most in the set of data. A) Mean. B) Mode. C) Range. D) Median. Show Answer Correct Answer: B) Mode. 57. Which of the following is an example of an arithmetic sequence? A) 2, 4, 8, 16, . B) 1, 2, 4, 8, . C) 3, 6, 9, 12, . D) 5, 10, 20, 40, . Show Answer Correct Answer: C) 3, 6, 9, 12, . 58. The first step in any statistical work after the formulation of the problem. It is the process of obtaining information. A) Tallying. B) Finding the Mean, Median and Mode. C) Graphing. D) Collection of Data. Show Answer Correct Answer: D) Collection of Data. 59. A question that anticipates and accounts for a variety of answers. A) Range. B) Box Plot. C) Mean. D) Statistical Question. Show Answer Correct Answer: D) Statistical Question. 60. What is the Italian word for Statistics? A) Status. B) Statista. C) All the above. D) None of the above. Show Answer Correct Answer: B) Statista. ← PreviousNext →Related QuizzesScience QuizzesClass 11 QuizzesClass 11 Mathematics Chapter 15 Statistics Quiz 1Class 11 Mathematics Chapter 15 Statistics Quiz 2Class 11 Mathematics Chapter 15 Statistics Quiz 3Class 11 Mathematics Chapter 15 Statistics Quiz 4Class 11 Mathematics Chapter 15 Statistics Quiz 5Class 11 Mathematics Chapter 15 Statistics Quiz 6Class 11 Mathematics Chapter 15 Statistics Quiz 7Class 11 Mathematics Chapter 15 Statistics Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books