Use the following to answer questions 44-49 The following table gives the freque

Question

Use the following to answer questions 44-49 The following table gives the frequency distribution of the number of rooms for a sample of 100 houses Number of Rooms 18 19 12 44. The relative frequency of the fourth class, rounded to two decimal places, is: 45. The percentage of houses that have three or fewer rooms is: 46. The percentage of houses that contain five or more rooms is 47. The number of houses that contain four or five rooms is: 48. The relative frequency of the fifth class, rounded to two decimal places, is: 49. The number of classes for this frequency distribution table is

Explanation / Answer

44.Relative frequency of fourth class (number of rooms = 5) = 21/100 = 0.21

45. Number of Three or less than three rooms houses = 8 + 11 = 19
Percentage = 19/100 = 19%

46. Number of Five or more rooms houses = 21 + 19 + 12 + 11 = 63
percentage = 63/100 = 63%

47. Number of Four or five rooms houses = 18 + 21 = 39
Percentage = 39/100 = 39%

48. Relative frequncy of fifth class = 19/100 = 0.19

49. Number of classes = 7

Number of rooms f relative frequency Cumulative F 2 8 0.08 0.08 3 11 0.11 0.19 4 18 0.18 0.37 5 21 0.21 0.58 6 19 0.19 0.77 7 12 0.12 0.89 8 11 0.11 1

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