Name: Date: Topic One: Mean, Variance, and Standard Deviatio Please type your answer in the cell beside the question. Please type you answer in the cell beside the question. 1. Identify the sampling technique being used. Every 20th patient that co emergency room is given a satisfaction survey upon their discharge. a. random sampling b. cluster sampling c. systematic sampling d. stratified sampling e. none of the above 2. The formula for finding the sample mean is _________________. a. = b. =(1)/ c. =/ =/ d. =/ =/ e. None of the above 3. The formula for finding sample standard deviation is ______________ a. a.=1 ^2 b. b.(/ ^2=(1()^2 )/ c. c.^2=(1()^2 (/ )/ d. d.^2=(1( (( )^2 )/(1) e. none of the above e. none of the above 4. 4. The The computation computation form form for for sample sample variance variance is is ___________________ ___________________ a. a. = ^2= b. b.^2=(1^2 (1)^2)/ c. c.=((^2 ( )) d. d.=/ =/ e. none of the above e. none of the above b. b.^2=(1 / ^2 (1 )^2)/ c. c.=((^2 ( )) d. d.=/ =/ e. none of the above e. none of the above 5. The following is the heart rate for 10 randomly selected patients on th mean, variance, and standard deviation of the data using the descriptive option in the data analysis toolpak. 75, 80, 62, 97, 107, 59, 76, 83, 84, 69 6. The following is a frequency distribution for the number of times patien light in a days time. X is the number of times the call light is used and f i (meaning the number of patients). Create a histogram of the data. X f 1 2 3 4 2 4 7 5 5 6 7 8 9 10 7 3 15 13 10 6 dard Deviation n. 20th patient that comes into the heir discharge. ___________. 1 2 s ________________. 3 _______________. _______________. 4 ected patients on the unit. Find the sing the descriptive statistics mber of times patients use the call ight is used and f is the frequency m of the data. 5 6