1. Which of the following is the correct definition of statistics? It is a science of collecting, organizing, summarizing, analyzing and interpreting data. It is a science that deals with tabulation of numbers. It is a science that deals with surveys only. one of the above 2. What is the area under the curve of the normal distribution? 3. Which of the following is a discrete random variable? average amount of electricity consumed average weight of female athletes number of costumers in boutique amount of paint used in repainting a building 4. Which of the following is a continuous random variable? average number of patients in a hospital average height of volleyball players number of female athletes number of dropouts in a school 5. If three coins are tossed, which is NOT a possible value of random variable for the number of head/s? 1 2 3 4 6. In a normal distribution, the mean, mode and median are all equal. True False Depends on the type of normal distribution Depends on some other factors 7. If P (X) = x/5 , what are the possible values of X for it to be a probability distribution? 1,2,3 1,1,3 2,3,4 0,1,3 8. Which of the following is a normal distribution symmetric? Covariance Standard deviation Mean Variance 9. A bag contains 4 blue marbles, 6 red marbles, 10 yellow marbles and 6 green marbles. What is the probability of not drawing a red marble? 6/26 3/13 2/13 10/13 10. For normal distribution, which of the following statements is NOT true? It is symmetric. The tails of the curve touches the baseline. The mean, median and mode are equal. The area under the curve is one. 11. What is a discrete random variable is a graph, table or formula that specifies the probability associated with each possible outcome the random variable can assume? continuous random variable discrete random variable probability probability distribution 12. Which of the following statement is TRUE? All of the statements are TRUE. Non-countable values are called discrete variables Countable number of values are called discrete variables infinite numbers are considered discrete variables. 13. What is a population? some cases under study these are few or more members of the population group of people none of the above 14. It deals with predicting the likelihood of future events. Probability Random variable Statistics Variable 15. A couple has three kids. What will be the values which can be attained by the random variable representing number of daughters the couple is having? 0,1,2,3 1,2,3,4 2,3,4,0 1,1,2,2 (16-20) identify which sampling method is applied. 16. A brand manager of a toothpaste asks ten dentists that have clinic closet to his office whether they use a particular brand of toothpaste. 17. The people in a certain seminar are all members of two of five groups are asked what they think about the President. 18. A barangay health worker asks every four house in the village for the ages of the children living in those households. 19. The teacher randomly selects 20 boys and 15 girls from a batch of learners to be members of the group that will go to a field trip. 20. A sample of 10 mice are selected at random from a set of 40 mice to test the effect of a certain medicine