The accompanying data represent the approximate population, in millions, of the 20 most populous cities in the world. Use these data to construct a frequency distribution with a first class of 7.0 -7.9. Fill in the missing classes and the frequency for each class below. Population (millions of people) 7.0 -7.9 □-□ 10.0 - 10.9 11.0-11.9 Number of Cities 13.5 11.5 10.1 8.3 7.7 13.4 11.3 10.1 8.2 7.6 13.3 10.8 9.5 8.2 7.6 13.3 10.5 9.2 7.7 7.2 20

Recall that a relative frequency histogram is used to graph quantitative data. Classes are chosen to divide the range of values into equal-length subintervals, then plotted along the horizontal axis. A bar is drawn for each class with height equal to the relative frequency for that class. To create a relative frequency histogram, first summarize the following data in a frequency table. 1 N 2 3 4 5 6 7 Class Class Boundaries 8 9 1.3 10 11 14.7 9.0 16.7 4.1 14.9 4.4 2.7 32.3 10.9 9.0 9.0 1.6 18.4 1.0 2.4 2.4 18.0 Since the measurements are all between the values 0 and 33, it will be convenient to choose 11 class intervals of length 3. Using the given data, tally the values within each class interval to determine the frequency of each class, and fill in the following table. 0 to <3 3.5 11.2 18.0 26.7 3.7 3 to 6 6 to 9 9 to 12 12 to < 15 15 to 18 18 to 21 21 to 24 24 to 27 0.2 6.1 13.5 27 to < 30 30 to 33 7.4 8.2 19.2 1 1 2 1 Frequency 10 5 1 4 1 X X 9.4 X 8.7 X 2.0 6.6 3.9 5.9 4.3 3.3 0.2…

Analyze: write an analysis of the relative frequency table.    Female  Male  Total  Agree  0.32 0.32 0.64 Disagree 0.16 0.2 0.36 Total  0.48 0.34 1

The data represent the time, in minutes, spent reading a political blog in a day. Construct a frequency distribution using 5 classes. In the table, include the midpoints, relative frequencies, and cumulative frequencies. Which class has the greatest frequency and which has the least frequency? Complete the table, starting with the lowest class limit. (Simplify your answers.) Class 10-9 Frequency 1 O Midpoint 5 45 49 33 37 Relative Frequency 1 33 14 44 27 39 34 33 12 2024 47 46 D 38 48 38 Cumulative Frequency