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(a) Use class intervals of $0 to <$3, $3 to <$6, $6 to <$9, etc., to create a relative frequency distribution for these data. (Round your answers for relative frequency to four decimal places.) Class Interval Frequency Relative Frequency $0 - <$3 $3-<$6 $6-<$9 $9-<$12 $12-<$15 $15 - <$18 $18-<$21 TOTAL (b) Construct a histogram. Frequency 14 12 10 8 Frequency 14 12 10 3 4 51 0.0588 0.0784 0.0588 6 9 12 15 18 21 3 6 9 12 15 18 21 Cost Cost Frequency 14 12 10 8 Frequency 15 10 5 H 6 9 12 15 18 18 21 3 6 9 12 15 18 21 Comment on its shape. O This is a unimodal distribution with a peak at the 0-3 class. The distribution is positively skewed. Cost Cost O This is a bimodal distribution with peaks at the 12-15 and 18-21 classes. The distribution is negatively skewed. O This is a bimodal distribution with peaks at the 0-3 and 6-9 classes. The distribution is positively skewed. O This is a unimodal distribution with a peak at the 9-12 class. The distribution is reasonably symmetric. (c) Using the relative frequency distribution or the histogram, estimate the proportion of the states that have a minimum monthly cost of less than $12.00 a month. (Round your answer to one decimal place.)

(a) Use class intervals of $0 to <$3, $3 to <$6, $6 to <$9, etc., to create a relative frequency distribution for these data. (Round your answers for relative frequency to four decimal places.) Class Interval Frequency Relative Frequency $0 - <$3 $3-<$6 $6-<$9 $9-<$12 $12-<$15 $15 - <$18 $18-<$21 TOTAL (b) Construct a histogram. Frequency 14 12 10 8 Frequency 14 12 10 3 4 51 0.0588 0.0784 0.0588 6 9 12 15 18 21 3 6 9 12 15 18 21 Cost Cost Frequency 14 12 10 8 Frequency 15 10 5 H 6 9 12 15 18 18 21 3 6 9 12 15 18 21 Comment on its shape. O This is a unimodal distribution with a peak at the 0-3 class. The distribution is positively skewed. Cost Cost O This is a bimodal distribution with peaks at the 12-15 and 18-21 classes. The distribution is negatively skewed. O This is a bimodal distribution with peaks at the 0-3 and 6-9 classes. The distribution is positively skewed. O This is a unimodal distribution with a peak at the 9-12 class. The distribution is reasonably symmetric. (c) Using the relative frequency distribution or the histogram, estimate the proportion of the states that have a minimum monthly cost of less than $12.00 a month. (Round your answer to one decimal place.)

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 35PPS
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(a) Use class intervals of $0 to <$3, $3 to <$6, $6 to <$9, etc., to create a relative frequency distribution for these data. (Round your answers for relative frequency to four decimal places.) Class Interval Frequency Relative Frequency $0 <$3 $3 <$6 $6 <$9 $9 <$12 $12- <$15 $15 <$18 $18 <$21 TOTAL (b) Construct a histogram. Frequency 14 12 10 8 6 4 Frequency 14 12 10 8 6 4 2 3 3 4 3 51 3 6 9 12 15 18 21 6 0.0588 9 0.0784 0.0588 12 15 18 21 Cost Cost Frequency 14 12 10 8 6 4 Frequency 15 10 5 3 6 9 3 6 9 12 15 18 21 12 15 18 Comment on its shape. O This is a unimodal distribution with a peak at the 0-3 class. The distribution is positively skewed. This is a bimodal distribution with peaks at the 12-15 and 18-21 classes. The distribution is negatively skewed. O This is a bimodal distribution with peaks at the 0-3 and 6-9 classes. The distribution is positively skewed. O This is a unimodal distribution with a peak at the 9-12 class. The distribution is reasonably symmetric. 21 Cost Cost (c) Using the relative frequency distribution or the histogram, estimate the proportion of the states that have a minimum monthly cost of less than $12.00 a month. (Round your answer to one decimal place.) %
Transcribed Image Text:(a) Use class intervals of $0 to <$3, $3 to <$6, $6 to <$9, etc., to create a relative frequency distribution for these data. (Round your answers for relative frequency to four decimal places.) Class Interval Frequency Relative Frequency $0 <$3 $3 <$6 $6 <$9 $9 <$12 $12- <$15 $15 <$18 $18 <$21 TOTAL (b) Construct a histogram. Frequency 14 12 10 8 6 4 Frequency 14 12 10 8 6 4 2 3 3 4 3 51 3 6 9 12 15 18 21 6 0.0588 9 0.0784 0.0588 12 15 18 21 Cost Cost Frequency 14 12 10 8 6 4 Frequency 15 10 5 3 6 9 3 6 9 12 15 18 21 12 15 18 Comment on its shape. O This is a unimodal distribution with a peak at the 0-3 class. The distribution is positively skewed. This is a bimodal distribution with peaks at the 12-15 and 18-21 classes. The distribution is negatively skewed. O This is a bimodal distribution with peaks at the 0-3 and 6-9 classes. The distribution is positively skewed. O This is a unimodal distribution with a peak at the 9-12 class. The distribution is reasonably symmetric. 21 Cost Cost (c) Using the relative frequency distribution or the histogram, estimate the proportion of the states that have a minimum monthly cost of less than $12.00 a month. (Round your answer to one decimal place.) %
Medicare's new medical plans offer a wide range of variations and choices for seniors when picking a drug plan. The monthly cost for a stand-alone drug plan varies from plan to plan and from state to state. The accompanying table gives the premium for the plan with the lowest cost for each state. Cost per Month (dollars) 6.71 9.99 19.11 11.34 8.81 15.87 7.33 11.73 4.10 16.57 12.65 7.71 7.55 16.12 10.86 8.60 1.87 12.12 10.47 8.76 7.68 14.95 17.28 12.58 7.26 10.44 7.99 1.87 10.09 11.69 6.06 State Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming 5.43 10.43 18.01 1.87 12.85 12.10 6.94 8.70 5.38 9.75 1.87 6.42 8.70 1.87 6.20 1.87 6.62 19.81 6.36 12.45
Transcribed Image Text:Medicare's new medical plans offer a wide range of variations and choices for seniors when picking a drug plan. The monthly cost for a stand-alone drug plan varies from plan to plan and from state to state. The accompanying table gives the premium for the plan with the lowest cost for each state. Cost per Month (dollars) 6.71 9.99 19.11 11.34 8.81 15.87 7.33 11.73 4.10 16.57 12.65 7.71 7.55 16.12 10.86 8.60 1.87 12.12 10.47 8.76 7.68 14.95 17.28 12.58 7.26 10.44 7.99 1.87 10.09 11.69 6.06 State Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of Columbia Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming 5.43 10.43 18.01 1.87 12.85 12.10 6.94 8.70 5.38 9.75 1.87 6.42 8.70 1.87 6.20 1.87 6.62 19.81 6.36 12.45
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