Please take your time I need the answers to be correct

1. [-I1 Points] BBUNDERSTAT1D 3.1.002. ASK YOUR TEACHER What symbol is used for the arithmetic mean when it is a sample statistic? What symbol is used when the arithmetic mean is a population parameter? 0 statistic, x; parameter, x 0 statistic, Q; parameter, M 0 statistic, pi; parameter, R 0 statistic, ,4; parameter, p 2. {-11 Points] BBUNDERSTAT1D 3.2.004. ASK YOUR TEACHER What symbol is used for the standard deviation when it is a sample statistic? What symbol is used for the standard deviation when it is a population parameter? 0 Sample statistic: a. Population parameter: s. O For both, sis used. 0 For both, a is used. 0 Sample statistic: 5. Population parameter: or. 3. {-11 Points] MENDSTATC4 2.TB.001. ASK YOUR TEACHER which of the following is a meaningful measure of centre when the data are qualitative? O the mean 0 the quartile O the median O the mode Need Help? _ Show My Work (Optimal) o 4. [-I1 Points] MENDSTATCZ 2.MC.019. ASK YOUR TEACHER Which of the following statements is true? a. OThe sum of the deviations from the mean is always zero. b. OThe sum of the squared deviations from the mean is always zero. c. OThe standard deviation is always smaller than the variance. d. OThe distance between the first and third quartiles is twice the distance between the rst and second quartiles. e. Onone of these Need Help? _"' 5. {-11 Points] MENDSTATCZ 2.MC.023. ASK YOUR TEACHER Numbers that indicate the spread or scatter of observations in a data set are: a. Omeasures of center b. Omeasures of location c. Omeasures of variability d. Omeasures of shape e. Call of these Need Help? _ 6. [-I1 Points] MENDSTATCZ 2.MC.025. ASK YOUR TEACHER If a store manager selected a sample of customers and computed the mean income for this sample, he has computed: a. Ca parameter b. Oa statistic 5. 0a qualitative value d. Call of these e. Onone of these