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1) A medical research team studied the ages of patients who had strokes caused by stress. The ages of 34 patients who suffered stress strokes were as follows. NOTE: Use your own paper to show the answers to this problem. 29 30 36 41 45 50 57 61 28 50 36 58 60 38 36 47 40 32 58 46 61 40 55 32 61 56 45 46 62 36 38 40 50 27 a) Construct a frequency and relative frequency distribution for these ages. Use 8 classes beginning with a lower class limit of 25. b) Construct a histrogram. c) Construct a frequency polygon.

1) A medical research team studied the ages of patients who had strokes caused by stress. The ages of 34 patients who suffered stress strokes were as follows. NOTE: Use your own paper to show the answers to this problem. 29 30 36 41 45 50 57 61 28 50 36 58 60 38 36 47 40 32 58 46 61 40 55 32 61 56 45 46 62 36 38 40 50 27 a) Construct a frequency and relative frequency distribution for these ages. Use 8 classes beginning with a lower class limit of 25. b) Construct a histrogram. c) Construct a frequency polygon.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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1) A medical research team studied the ages of patients who had strokes caused by stress. The ages of 34 patients who suffered stress strokes were as follows. NOTE: Use your own paper to show the answers to this problem. 29 30 36 41 45 50 57 61 28 50 36 58 60 38 36 47 40 32 58 46 61 40 55 32 61 56 45 46 62 36 38 40 50 27 a) Construct a frequency and relative frequency distribution for these ages. Use 8 classes beginning with a lower class limit of 25. b) Construct a histrogram. c) Construct a frequency polygon. 2) The numbers below represent the commute times (in minutes) for a group of college students. 11 16 12 16 13 25 26 35 2 12 23 12 16 34 21 4 7 24 23 34 a) Construct a stem and leaf display. Use your own paper to show this display. b) Find the mean. c) Find the median. d) Find the mode. e) Which of the previously found measures of central tendancy is the most accurate for the data? Explain why. 3) This double-bar graph shows the number of male (M) and female (F) athletes at a university over a four-year period. 500 di 450 a 400 350 300 * 250 200 150 100 50 1986 1987 1988 1989 YEAR a) What percentage of all students involved in athletics in 1986 was female? b) Which year had the same number of male and female athletes? Number of Athletes
Transcribed Image Text:1) A medical research team studied the ages of patients who had strokes caused by stress. The ages of 34 patients who suffered stress strokes were as follows. NOTE: Use your own paper to show the answers to this problem. 29 30 36 41 45 50 57 61 28 50 36 58 60 38 36 47 40 32 58 46 61 40 55 32 61 56 45 46 62 36 38 40 50 27 a) Construct a frequency and relative frequency distribution for these ages. Use 8 classes beginning with a lower class limit of 25. b) Construct a histrogram. c) Construct a frequency polygon. 2) The numbers below represent the commute times (in minutes) for a group of college students. 11 16 12 16 13 25 26 35 2 12 23 12 16 34 21 4 7 24 23 34 a) Construct a stem and leaf display. Use your own paper to show this display. b) Find the mean. c) Find the median. d) Find the mode. e) Which of the previously found measures of central tendancy is the most accurate for the data? Explain why. 3) This double-bar graph shows the number of male (M) and female (F) athletes at a university over a four-year period. 500 di 450 a 400 350 300 * 250 200 150 100 50 1986 1987 1988 1989 YEAR a) What percentage of all students involved in athletics in 1986 was female? b) Which year had the same number of male and female athletes? Number of Athletes
4) In a school survey, students showed these preferences for instructional materials. Answer the question. Computer 36% 9% 5% Radio Hritten TV Film 12% 20% 18% Lecture a) About how many students would you expect to prefer lectures in a school of 300 students? b) How many degrees are in the central angle for the "radio" sector? 5) Use this graph to answer the question. (Answer questions with the month number NOT the assumed month name.) Big "D" Sales for 2009, 2010 76 72 68 2010 64 Sales 60 (thousands of dollars) 56 52 48 2009 44 40 1 2 3 4 5 6 7 8 9 10 11 12 Month a) Which month in 2009 had the lowest sales? b) Which month in 2010 had the highest sales? c) Which month has the smallest change in sales from 2009 to 2010? d) What is the sales amount in month 9 in 2010?
Transcribed Image Text:4) In a school survey, students showed these preferences for instructional materials. Answer the question. Computer 36% 9% 5% Radio Hritten TV Film 12% 20% 18% Lecture a) About how many students would you expect to prefer lectures in a school of 300 students? b) How many degrees are in the central angle for the "radio" sector? 5) Use this graph to answer the question. (Answer questions with the month number NOT the assumed month name.) Big "D" Sales for 2009, 2010 76 72 68 2010 64 Sales 60 (thousands of dollars) 56 52 48 2009 44 40 1 2 3 4 5 6 7 8 9 10 11 12 Month a) Which month in 2009 had the lowest sales? b) Which month in 2010 had the highest sales? c) Which month has the smallest change in sales from 2009 to 2010? d) What is the sales amount in month 9 in 2010?
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