This quiz works best with JavaScript enabled. Home > Class 11 > Class 11 Mathematics Chapter 15 Statistics – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 11 Mathematics Chapter 15 Statistics Quiz 21 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. STATISTICAL OR NON-STATISTICAL:What brand of toothpaste is used most often by your classmates? A) NON-STATISTICAL. B) STATISTICAL. C) All the above. D) None of the above. Show Answer Correct Answer: B) STATISTICAL. 2. How do you find the mean? A) The number that occurs the most. B) The number that is in the middle. C) Subtract the largest number and the smallest number in the data set. D) Add the numbers in the data set and then divide by how many numbers are in the data set. Show Answer Correct Answer: D) Add the numbers in the data set and then divide by how many numbers are in the data set. 3. Determine $\nabla\cdot\left(\nabla\times F\right)$ $F\left(x, y, z\right)=e^{xz}i+3xe^yj-e^{yz}k$ A) $3$. B) $ze^{yz}$. C) $xe^{xz}$. D) $0$. Show Answer Correct Answer: D) $0$. 4. What do you call to the square root of the variance? A) Variance. B) Range. C) Standard deviation. D) Average deviation. Show Answer Correct Answer: C) Standard deviation. 5. 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) $\left(-2y^3\right)i-\left(2x\right)k$. B) $\left(-2y^3\right)i-\left(x^2\right)k$. C) $\left(-2y^3\right)i-\left(x^2\right)j$. D) $\left(-2y^3\right)j-\left(x^2\right)k$. Show Answer Correct Answer: B) $\left(-2y^3\right)i-\left(x^2\right)k$. 6. 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. 7. What is a complete collection of all elements to be studied called? A) Analysis. B) Sample. C) Population. D) Data. Show Answer Correct Answer: C) Population. 8. What is the mode of the given set:5, 5, 6, 9, 10, 4 and 7 A) 9. B) 6. C) 10. D) 5. Show Answer Correct Answer: D) 5. 9. 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) 6. B) 7. C) 8. D) 9. Show Answer Correct Answer: B) 7. 10. 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. 11. Which measure of central tendency is generally used in determining the size of the most sealable shoes in a department store? A) Mean. B) Median. C) Mode. D) Range. Show Answer Correct Answer: C) Mode. 12. 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) Experimentation. B) Survey. C) Questionnaire. D) Observation. Show Answer Correct Answer: A) Experimentation. 13. 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. 14. 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. 15. What is the standard deviation of the probability distribution below? A) 0.85. B) 0.86. C) 0.87. D) 0.88. Show Answer Correct Answer: C) 0.87. 16. What is the sample space in picking a card in a standard deck of cards? A) 2. B) 6. C) 36. D) 52. Show Answer Correct Answer: D) 52. 17. 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. 18. 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) 30. B) 35. C) 40. D) 45. Show Answer Correct Answer: C) 40. 19. What is the Power of a test? A) A strong force. B) The probability that we correctly reject a false null hypothesis. C) The probability that we correctly accept a true null hypothesis. D) To reject the null, when the null is tree. Show Answer Correct Answer: B) The probability that we correctly reject a false null hypothesis. 20. ..... is the difference between the largest and the smallest figure in a set of figures. A) Mean. B) Median. C) Mode. D) Range. Show Answer Correct Answer: D) Range. 21. 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. 22. 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. 23. The arithmetic average of a distribution of numbers. A) Mean. B) Median. C) Mode. D) Range. Show Answer Correct Answer: A) Mean. 24. How often something occurs divided by the total A) Relative frequency. B) Compound event. C) Sample space. D) Tree diagram. Show Answer Correct Answer: A) Relative frequency. 25. Which of the following is the other term used for average? A) Mean. B) Median. C) Mode. D) Range. Show Answer Correct Answer: A) Mean. ← PreviousNext →Related 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 8Class 11 Mathematics Chapter 15 Statistics Quiz 9Class 11 Mathematics Chapter 15 Statistics Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books