This quiz works best with JavaScript enabled. Home > Ugc Net > Paper 1 > Data Interpretation > Statistics – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Statistics Quiz 2 (30 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Descriptive Statistics helps us to ..... A) Organize data and represent data. B) Make decisions based on data. C) Make objective decisions. D) None of above. Show Answer Correct Answer: A) Organize data and represent data. 2. P be the probability of an event. P = 0.5 implies A) The even is likely to happen. B) The event is unlikely to happen. C) The event is equally likely to happen or not to happen. D) The expression is nonsense. Show Answer Correct Answer: C) The event is equally likely to happen or not to happen. 3. ..... consist of information coming from observations, counts, measurements, or responses. A) Sample. B) Population. C) Statistics. D) Data. Show Answer Correct Answer: D) Data. 4. Which of the following is not the limitations of statistics: A) Statistics does not deal with individual. B) Statistics can study of market structures. C) Statistical laws are not exact. D) Statistics can be Misused. Show Answer Correct Answer: B) Statistics can study of market structures. 5. REVIEW:When a graph is symmetrical, what would you use to describe the center and spread? A) Mean and IQR. B) Median and IQR. C) Mean and Standard Deviation. D) Median and Standard Deviation. Show Answer Correct Answer: C) Mean and Standard Deviation. 6. Deals with the formulation of inferences about conditions that exist in a population from study of a sample drawn from a population. A) Descriptive statistics. B) Statistician. C) Inferential statistics. D) Statistics. Show Answer Correct Answer: C) Inferential statistics. 7. The data set below has an outlier of 42.2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42What effect does removing the outlier have on the distribution of the data? A) The median will increase. B) The mean will increase. C) The median will decrease. D) The mean will decrease. Show Answer Correct Answer: D) The mean will decrease. 8. A business evaluates a proposed venture as follows. It stands to make a profit of $ 10, 000 with probability 3/20, to make a profit of $ 5000 with probability 9/20, to break even with probability 5/20, and lose $ 5000 with probability 3/20. The expected profit in dollars is A) 1500. B) 3000. C) 0. D) 3250. Show Answer Correct Answer: B) 3000. 9. Mrs. Jones surveyed the class for the number of letters in their given first name. The data is recorded below.{5, 8, 6, 5, 4, 9, 8, 7, 6, 3, 8, 7, 5, 6, 7, 8}What is the interquartile range of the data? A) 7. B) 3. C) 2. D) 8. Show Answer Correct Answer: B) 3. 10. What is the outlier of the following data:5, 3, 4, 6, 7, 9, 19, 2, 8, 10, 5 A) 7.091. B) 19. C) 6. D) 5. E) 17. Show Answer Correct Answer: B) 19. 11. A questionnaire is a list of well-planned questions written on paper which can either be personally administered of mailed by the researcher to the respondents using any of the following forms EXCEPT A) Guided-response type. B) Recall type. C) Free response type. D) Interview type. Show Answer Correct Answer: D) Interview type. 12. It is the characteristic or attribute of a sample or population that changes or varies for different individuals or things. A) Random Variable. B) Variable. C) Statistics. D) Sample Space. Show Answer Correct Answer: B) Variable. 13. Social security number of a worker is ..... A) Interval Scale. B) Reason Scale. C) Ordinal Scale. D) Nominal Scale. Show Answer Correct Answer: D) Nominal Scale. 14. A recent survey found that out of 400 random American adults, 89% pay their bills on time. The margin of error in this survey was 2%. What is the interval of values in which the truth is likely found? A) 87%-89%. B) 89%-91%. C) 388-402. D) 87%-91%. Show Answer Correct Answer: D) 87%-91%. 15. When p-value is greater than alpha we: A) Fail to reject Ho. B) Fail to reject Ha. C) Reject Ha. D) Reject Ho. Show Answer Correct Answer: A) Fail to reject Ho. 16. The mean of a set of numbers is $ \overline{X}$ . If each number is multiplied by z, the mean is A) $ \overline{X}+z$. B) $ z\ \overline{X}$. C) $ \overline{X}$. D) $ \overline{X}-z$. Show Answer Correct Answer: B) $ z\ \overline{X}$. 17. What is the word in statistics for any characteristic or attribute of a person, place, or thing? A) Descriptive statistic. B) Variable. C) Parameter. D) Inferential statistic. Show Answer Correct Answer: B) Variable. 18. What is a variable? A) It is a set that groups a series of data with similar characteristics. B) It is a set that groups a series of data with diferent characteristics. C) It is a number. D) It is a characteristic of an object. Show Answer Correct Answer: A) It is a set that groups a series of data with similar characteristics. 19. Samples used were too small and convenient are examples of which kind of misuse? A) Changing the Subject. B) Suspect Samples. C) Ambiguous Averages. D) Detached Statistics. Show Answer Correct Answer: B) Suspect Samples. 20. The entire set of items from which data can be selected? A) Statistics. B) Population. C) Data. D) Sample. Show Answer Correct Answer: B) Population. 21. Probability can be written as ..... A) A fraction. B) A decimal. C) A percent. D) All of the above. Show Answer Correct Answer: D) All of the above. 22. Population mean is denoted by A) $ \theta$. B) $ \pi$. C) $ \sigma$. D) $ \mu$. Show Answer Correct Answer: D) $ \mu$. 23. Inferential statistics makes judges or claims from analyzing ..... A) A sample from a population. B) A whole population. C) Data obtained. D) A random sample. Show Answer Correct Answer: A) A sample from a population. 24. In testing hypotheses, which of the following would be strong evidence against the null hypothesis? A) Using a small level of significance. B) Using a large level of significance. C) Obtaining data with a small p-value. D) Obtaining data with a low test statistic. Show Answer Correct Answer: C) Obtaining data with a small p-value. 25. ..... consists of information coming from observations, responses etc A) Population. B) Sample. C) Data. D) Data set. Show Answer Correct Answer: C) Data. 26. Farmer Joe separates his farm into 10 regions. He then randomly selected 5 trees from each region to estimate the number of apples produced on his apple tree farm. This is ..... sampling. A) Simple. B) Cluster. C) Systematic. D) Stratified. Show Answer Correct Answer: D) Stratified. 27. Statistic measures and analizes ..... A) Information. B) Change over time. C) Variability. D) Independability. Show Answer Correct Answer: C) Variability. 28. Which measure of central tendency best represents this set of data:3, 18, 2, 0, 1, 0, 2, 1 A) Median. B) Range. C) Mode. D) Mean. Show Answer Correct Answer: A) Median. 29. To study the amount of time students spend doing homework each day, use a random number generator to select 25 students from the student enrollment database to survey. A) Convenience Sample. B) Simple Random Sample. C) Stratified Random Sample. D) Interval Sample. Show Answer Correct Answer: B) Simple Random Sample. 30. Put data set in order from least to greatest and find the middle number. A) Range. B) Finding the Mode. C) Finding the Mean. D) Finding the Median. Show Answer Correct Answer: D) Finding the Median. ← PreviousNext →Related QuizzesPaper 1 QuizzesUgc Net QuizzesStatistics Quiz 1Statistics Quiz 3Statistics Quiz 4Statistics Quiz 5Statistics Quiz 6Statistics Quiz 7Statistics Quiz 8Statistics Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books