Consider the following frequency table representing the distribution of cost of a paperback book (in dollars). Cost of a Paperback Book (in Dollars) Frequency 11 Class 6.1-7.0 7.1-8.0 14 8.1-9.0 3 9.1- 10.0 10 10.1- 11.0 4 Determine the class width of each class.

The following table gives the frequency distribution of the commute distances (in miles) for the population of 50 instructors at a local community college.    Commute Distance (miles)     Frequency    11 - 15     9    16 - 20    14    21 - 25    12    26 - 30     8    31 - 35    5    36 - 40    2   What is the Class Width for this frequency distribution? Class Width = [cw] miles            = ______________

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Please do not give solution in image format thanku A car salesman collected data on how many cars were sold at a dealership per day for two weeks. The results were as follows: 6, 7, 4, 3, 1, 2, 6, 6, 6, 7, 4, 4. Make a frequency table and then make a histogram based on that frequency table. What is the shape of the distribution? O Skewed to the right O Skewed to the left O Bimodal O Symmetrical

The number of hospital beds in a sample of 20 hospitals is shown below. Construct a frequency distribution and a frequency histogram for the data set using 5 classes. Describe the shape of the histogram as symmetric, uniform, negatively skewed, positively skewed, or none of these. 166 159 132 125 185 163 165 216 145 135 D 199 210 152 250 262 241 285 139 205 179 Construct a frequency distribution for the data set using 5 classes. (Type whole numbers.) Class Frequency 125-157 158–190 191-223 224-256 257-289 Construct a frequency histogram for the data set using the frequency distribution. Choose the correct answer below. O A. OB. О с. OD. Hospital Beds Hospital Beds Hospital Beds Hospital Beds 8- 8- * 6- - 2- E 2+ 0+ 108 174 240 306 0+ 108 174 240 306 0+ 108 174 240 306 0+ 108 174 240 306 Numhar of harde Numhar of hade Numher nf hede Numher of hede Aou anbai Frequency Frequency

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…

Below is a frequency distribution for the estimated miles per gallon (MPG) for 298 different models Japanese-made cars. Japanese-Made Cars Frequency 14 42 100 92 24 18 2 2 2 2 MPG 10 - 13 14 - 17 18 - 21 22 - 25 26 - 29 30-33 34 - 37 38 - 41 42-45 46 - 49 (a) Identify the following class midpoints (enter as a comma-separated list) class boundaries (enter as a comma-separated list)

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1. Find the class midpoints of the first three classes (20-29,30-39, and 40-49) 2. Is the data displayed in the frequency table approximately normal? Explain your reasoning