Question

question 44-48

Use the given frequency distribution to find the (a) class width. (b) class midpoints of the first class. (c) class boundaries of the first class. 44) Miles (per day) Class Frequency,f 1-2 44) 3- 4 5- 6 28 15 9-10 A) (a) 2 (b) 1 (c) 1-2 B) (a) 1 (b) 1 (c) 1-2 C) (a) 1 (b) 15 (c) 0.5-25 D) (a) 2 (c) 0.5-2.5 Determine whether you would take a census or use a sampling. If you would use a sampling, decide what sampling technique you would use. 45) The average age of the 80 residents of an assisted living center A) cluster sampling C) census 45) B) random sampling D) stratified sampling Identify whether the statement describes inferential statistics or descriptive statistics. 46) The average age of the students in a statistics class is 21 years. A) descriptive statistics 46) B) inferential statistics 47) Based on previous clients, a marriage counselor concludes that the majority of marriages that 47) begin with cohabitation before marriage will result in divorce. A) inferential statistics B) descriptive statistics Use the Venn diagram to identify the population and the sample. 48) 48) Magazine subscribers Magazine subscribers who renew their subscription A) Population: Magazine subscribers: Sample, Magazine subscribers who renew their subscription B) Population: Magazine subscribers who renew their subscription; Sample: Magazine B-7

Answer 1

Population is the whole set of individuals and the sample is the smaller set which is a part of the population.

Ans: A) Population: Magazine subscribers; Sample: Magazine subscribers who renew their subscription.