This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Data Interpretation > Statistics – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Statistics Quiz 7 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A variable that takes only whole number as its score is known as A) Discrete variable. B) Intervening variable. C) Continuous variable. D) Dependent variable. Show Answer Correct Answer: A) Discrete variable. 2. The sample size of poll is 107 people. What is the approximate margin of error. A) 3.1%. B) 2.38%. C) 10%. D) 1%. Show Answer Correct Answer: C) 10%. 3. If you score 76, 85, 97, and 83 on your math tests, what would your median score be? A) 85. B) 84. C) 88. D) 90. Show Answer Correct Answer: B) 84. 4. These are units of information, often numeric, recorded and used for the purpose of analysis. A) Questionnaire. B) Data. C) Statistics. D) None of above. Show Answer Correct Answer: B) Data. 5. Population mean or proportion The parameter must be identified before analysis? A) Population. B) Simple. C) Parameter. D) All the above. Show Answer Correct Answer: C) Parameter. 6. A subset of the population. A) Population. B) Variable. C) Sample. D) Statistice. Show Answer Correct Answer: C) Sample. 7. What is the the total area under the standard normal distribution curve? A) 100. B) 1. C) 25. D) .5. Show Answer Correct Answer: B) 1. 8. The average waist size for teenage males is 29 inches with a standard deviation of 2 inches. If waist sizes are normally distributed, determine the z-score of a teenage male with a 33 inch waist. A) 1.00. B) -2.00. C) 2.00. D) -1.00. Show Answer Correct Answer: C) 2.00. 9. What is a quantitative variable that can take on a certain number of values? A) Numerical variable. B) Categorical variable. C) Discrete variable. D) Qualitative variable. Show Answer Correct Answer: C) Discrete variable. 10. The collection and classification of data that are in the form of numbers. A) Statistics. B) Range. C) Population. D) Data. Show Answer Correct Answer: A) Statistics. 11. It is a statistical instrument consisting of a series of questions for the purpose of gathering information from respondents A) Questionnaire. B) Open-Ended Questions. C) Statistical Instruments. D) Closed-Ended Questions. Show Answer Correct Answer: A) Questionnaire. 12. The collection of data from every member of a population A) Sample. B) Statistics. C) Census. D) Population. Show Answer Correct Answer: C) Census. 13. Which of the following is not a feature of statistics in Plural sense? A) Affected by multiplicity of causes. B) Analysis of data. C) Statistics are collected for a predetermined purpose. D) Aggregate of facts. Show Answer Correct Answer: B) Analysis of data. 14. Define Statistics? A) Science of Data. B) Collection. C) Analyzing. D) Science of Collecting, organizing, analyzing, interpreting Data. Show Answer Correct Answer: D) Science of Collecting, organizing, analyzing, interpreting Data. 15. The mean of a set of seven numbers is 81. If one of the numbers is discarded, the mean of the remaining numbers is 78. The value of discarded number is A) 99. B) 100. C) 101. D) 98. Show Answer Correct Answer: A) 99. 16. The school librarian wants to determine how many students use the library on a regular basis. What type of sampling method would she use if she chose to randomly select 20 students in the cafeteria during each of the three lunch periods on Monday. A) Convenience Sample. B) Simple Random Sample. C) Stratified Random Sample. D) Interval Sample. Show Answer Correct Answer: C) Stratified Random Sample. 17. Statistics which is concerned with summarizing values to describe group characteristics of the data. A) Non Parametric. B) Parametric. C) Descriptive. D) Inferential. Show Answer Correct Answer: C) Descriptive. 18. Find the probability of rolling a 7 on a single die. A) 1/6. B) 7/6. C) 0. D) 7/7. Show Answer Correct Answer: C) 0. 19. The frequency or occurrence of something. A) Data. B) Frequency. C) Range. D) Distribution. Show Answer Correct Answer: D) Distribution. 20. The number of values that are free to vary after a sample statistic has been computed A) Degree of Freedon. B) Alpha. C) Critical Values. D) Z values. Show Answer Correct Answer: A) Degree of Freedon. 21. Where is Mr. Byer? A) Puerto Rico. B) Jamaica. C) Alaska. D) Florida. Show Answer Correct Answer: B) Jamaica. 22. Exit polls (where the surveyor asks those who are leaving the poll booths on election day) are a form of: A) Voluntary Response. B) Convenience Sampling. C) Simple Random Sampling. D) Systematic Sampling. Show Answer Correct Answer: B) Convenience Sampling. 23. Research Question:Does the type of gasoline put in a car effect how fast the car can drive. What is the independent variable? A) How fast the car can drive. B) How much gas is put into the car. C) Type of gasoline. D) Which car the gas is put into. Show Answer Correct Answer: C) Type of gasoline. 24. Eva flips a coin. If she gets heads, she wins $ 4. If she gets tails, she loses $ 3. What is her expected value of a coin flip? A) -$ 0.50. B) $ 0.50. C) $ 1. D) $ 0. Show Answer Correct Answer: B) $ 0.50. 25. A sample that follows a rule, formula, or pattern. A) Random sample. B) Stratified sample. C) Systematic sample. D) None of above. Show Answer Correct Answer: C) Systematic sample. 26. The sum of the percent frequencies for all classes will always equal A) Number of items in the study. B) One. C) 100. D) Number of classes. Show Answer Correct Answer: C) 100. 27. Find the mean of these numbers:2, 57, 38, 42, 6 A) 29. B) 38. C) 145. D) 50. Show Answer Correct Answer: A) 29. 28. A method to collect data where EVERY person is counted. A) Sample Survey. B) Census. C) Population. D) None of above. Show Answer Correct Answer: B) Census. 29. It is a collection of information that can be classified into groups. A) Statistics. B) Statistical question. C) Numerical data set. D) Categorical data set. Show Answer Correct Answer: D) Categorical data set. 30. The average waist size for teenage males is 29 inches with a standard deviation of 1.4 inch. If waist sizes are normally distributed, estimate the proportion of teenagers who will have waist sizes greater than 31 inches? A) 16%. B) 92.4%. C) 7.6%. D) 10.5%. Show Answer Correct Answer: C) 7.6%. ← PreviousNext →Related QuizzesPaper 1 QuizzesUgc Net QuizzesStatistics Quiz 1Statistics Quiz 2Statistics Quiz 3Statistics Quiz 4Statistics Quiz 5Statistics Quiz 6Statistics Quiz 8Statistics Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books