Statistics Questions & Answers

Statistics Questions & Answers Box and whisker plot - ANSWER: 1. minimum data entry 2. Q1 3. Q2 4. Q3 5. maximum data entry Class width - ANSWER: range/ # of classes Cumulative frequency (OGIVE) - ANSWER: The sums of the frequencies of the data values from smallest to largest. (use class width to determine the value before the lower class limit on graph) (midpoint) DESCRIPTIVE STATISTIC - ANSWER: is the branch of statistics that involves the organization and display of data Differential/ Inferential statistic A large sample of men aged 48 were studied for 18 years. For unmarried men approximately 70% were alive at age 65. For married men, 90% of men were alive at age 65. - ANSWER: Describe Statistic: 1. Unmarried men 70% alive at 65 2. Married men 90% alive at 65 Inferential: being married is associated with longer life