1. Jason wants to know the average height of senior high school students in his school. Which of the following is a good representative for the population? a. A sample consisting all grade 7 OHS students b. A sample consisting all officers of OHS students c. A sample consisting representatives from grade 7 to grade 10 OHS class which were drawn by lot d. All OHS students in school. 2. Which of the following describes a parameter? a. 40% of Filipinos are in favor of the Federal form of government. b. 30% of the school children in the Philippines like Mathematics c. 45% of 2,000 pupils in a certain school got below 10 on a standardized test. d. 15% of the residents in a certain country are aware of the proper waste disposal. 3. How many possible random samples of size 3 can be drawn from a population of size 12? a. 36 b. 1728 C. 144 d. 220 4. A certain population consist the numbers 1,2,3,4, and 5. Suppose samples of size 3 are drawn from this population, what is the variance of the sampling distribution of the sample means? a. 0.35 b. 0.33 c. 0.53 d. 0.38 5. A certain population has a mean of 13.2 and a standard deviation of 3.8. If random samples of size 5 is taken from this population, which of the following statements is correct? a. The mean of the sampling distribution of the sample means is equal to 13.2. b. The mean of the sampling distribution of the sample means is less than 13.2 c. The standard deviation of the sampling distribution of the sample means is 3.8 d. The standard deviation of the sampling distribution of the sample means is 13.8 6. Which value of standard deviation defines the best estimate of the population mean? a. 0.20 b. 0.37 c. 0.57 d. 1.3 7. A certain population has a mean of 50 and a standard deviation of 4. A random sample of 15 are drawn from this population. Which describes the sampling distribution of the sample means? a. The sampling distribution of the sample means has a mean of 50, variance of 1.067, and a standard deviation of 1.033. b. The sampling distribution of the sample means has a mean than 50, and a standard deviation of 0.033. c. The sampling distribution of the sample means has a mean less than 50, and a standard deviation of 1.033. d. The sampling distribution of the sample means has a mean of 50, variance of 1.067, and al standard deviation of 0.033