a) What is the upper quartile? a) ___________ b) What is the range? b) ___________ c) What percent of the data is 26 or lower? c) ___________ What is the median? d) ___________ d) e) What percent of the data is 19 or higher? e) ___________ f) What is the lower extreme? f) ___________ 16) The table shows the prices for parking at various beaches along the same coastline. Beach Parking ($) 2.50 3.75 1.25 2.25 3.00 Which of the following is the mean absolute deviation for the set of data(Do not select the MEAN)? A. $0.25 B. $0.66 C. $2.50 D. $2.55 17 18: Which sample is more likely to be random? Explain. – 17) You want to survey seventh-grade students about their computer use. a. You ask seventh-graders leaving the cafeteria after b. You ask the seventh-graders entering a local library lunch. on Friday night. 18) You want to know the most popular book among students at your school. a. You ask students from different grades at your b. You ask a group of your friends. school. 19 20: Is each question biased or fair? Explain. – 19) Do you prefer getting invigorating exercise or being 20) Do you prefer to exercise or watch television? a couch potato? Considering the formula, , answer the following. There are 20 marked sea otters in a coastal region. In a survey, marine biologists counted 42 sea otters, of 21) which 12 were marked. About how many sea otters are in the area?
a) What is the upper quartile? a) ___________ b) What is the range? b) ___________ c) What percent of the data is 26 or lower? c) ___________ d) What is the median? d) ___________ e) What percent of the data is 19 or higher? e) ___________ f) What is the lower extreme? f) ___________ 16) The table shows the prices for parking at various beaches along the same coastline. Beach Parking ($) 2.50 3.75 1.25 2.25 3.00 Which of the following is the mean absolute deviation for the set of data(Do not select the MEAN)? A. $0.25 B. $0.66 C. $2.50 D. $2.55 17 – 18: Which sample is more likely to be random? Explain. 17) You want to survey seventh-grade students about their computer use. a. You ask seventh-graders leaving the cafeteria after lunch. b. You ask the seventh-graders entering a local library on Friday night. 18) You want to know the most popular book among students at your school. a. You ask students from different grades at your school. b. You ask a group of your friends. 19 – 20: Is each question biased or fair? Explain. 19) Do you prefer getting invigorating exercise or being a couch potato? 20) Do you prefer to exercise or watch television? Considering the formula, , answer the following. 21) There are 20 marked sea otters in a coastal region. In a survey, marine biologists counted 42 sea otters, of which 12 were marked. About how many sea otters are in the area?
unit_8_test_review.docx