Refer to the following distribution of commissions: Monthly Commissions Class Frequencies $600 up to $800 800 up to 1,000 1,000 up to 1,200 1,200 up to 1,400 1,400 up to 1,600 1,600 up to 1,800 1,800 up to 2,000 2,000 up to 2,200 What is the class interval? 3 7 11 22 40 24 9 4

Task of the day: The credit office of a departmental store gave the following statements for payment due to 40 customers. Construct a frequency table of the balances due taking the class intervals as Dollar 50 and under Dollar 200, Dollar 200 and under Dollar 350, etc. Also find the percentage cumulative frequencies and jinterpret these values.

Grand Canyon...

The following data represent the heights (in inches) of 14 students in Ms. Warner's math class: 65, 63, 68, 59, 74, 59, 68, 61, 64, 60, 69, 72, 55, 64.   Complete the table Interval Frequency 55-58   59-62   63-66   67-70   71-74

The following is the number of minutes to commute from home to work for a group of 25 automobile executives.    51 29 30 34 44 27 52 24 57 31 40 45 40 43 40 36 39 36 48 42 39 43 48 38 33       a. How many classes would you recommend? b. What class interval would you suggest?

The amounts (in dollars) paid by 20 students for textbooks during the fall term are given on the right. Determine the frequencies of the class intervals for this data. 21 43 29 55 28 36 26 51 63 61 23 48 61 59 36 41 28 53 66 59 ..... Fill in the correct frequencies in the frequency table based on the data. Interval (in Dollars) Frequency 20-29 30-39 40-49 50-59 60-69

Use eight intervals, starting with 0-19. Perform the following. a. Group the data as indicated. b. Prepare a frequency distribution with a column for intervals and frequencies. c. Construct a histogram. d. Construct a frequency polygon. 13 106 115 71 127 26 27 44 127 81 55 137 44 71 63 142 76 73 123 12 44 35 85 81 2 98 84 96 91 37 86 145 33 82 12 101 a. Tally the given data falling into each interval. Choose the correct table below. O A. 0-19 I 20-39 uI 40-59 HII 60–79 HII 80-99 uI 100–119 H| 120-139 I 140–159 I||| Interval Tally OB. Interval Tally OC. Interval Tally 0-19 0-19 20-39 |II 40-59 HI 60–79 | 80-99 |I 100–119 |III 120–139 || 20-39 40-59 60-79 80-99 100–119 ||| 120-139 |||| 140–159 || 140–159

Use the following table: $ 210 290 286 $ 505 480 410 $ 310 550 305 $ 380 490 $ 275 444 200 368 Prepare a frequency distribution from the above weekly salaries of teachers at Moore Community College. Use the following intervals: Salaries $200-$299.99 ces 300-399.99 400-499.99 500-599.99 Frequency

The ungrouped frequency table below shows the number of students absent in a statistics class in a fall semester. (click to select) V a. Is it possible to recover the raw data from this table? Number Absent Number of Classes 3 3 5 8 0 1 2 3 4 5 6 b. What is the total number of absenteeism recorded in the course that semester? c. What number of absent students occurred most often? d. In how many classes were 2 students absent? 6 3 3 e. How many times were no more than 2 students absent? % Round to two decimal places f. How many times were more than 4 students absent? g. What proportion of classes were exactly 4 students absent? % Round to two decimal places h. What proportion of classes were up to 3 students absent? % i. What proportion of classes were more than 3 students absent?

Forty randomly selected people were asked the number of people living in their home. Let X = the number of people living in one home. The results are as follows: (3 points each) X Frequency Relative Frequency 1 2 2 5 3 8 4 12 5 12 6 0 7 1 a. Complete the frequency table. B. What percent of the people that have at least 5 people living in their home?