Hawkes Learning Business Statistics 2.1 100% Correct

Hawkes Learning Business Statistics 2.1 100% Correct Consider the following frequency table representing the distribution of hours students watch tv in a week. Hours Students Watch TV in a Week Class: Frequency*: 3-11 = 8* 12-20 = 3* 21-29 = 3* 30-38 = 9* 39-47 = 3* Step 1 of 2 : Determine the lower class boundary for the first class. Step 2 of 2 : Determine the upper class boundary for the second class. Answer: 2.5 Answer: 20.5 Consider the following frequency table representing the distribution of the length of a morning walk with the dog (in miles) Length of a Walk (in Miles) Class: Frequency*: 0.27-0.34 = 13* 0.35-0.42 = 3* 0.43-0.50 = 9* 0.51-0.58 = 3* 0.59-0.66 = 6* Step 1 of 2 : Determine the midpoint for the fourth class. Step 2 of 2 : Determine the midpoint for the third class. Answer: 0.51 + 0.58/2 = 0.545 Answer: 0.43 + 0.50 = 0.465 Consider the following frequency table representing the distribution of cost of a paperback book (in dollars). Cost of a Paperback Book (in Dollars) Class: Frequency*: 8.0-8.5 = 9* 8.6-9.1 = 10* 9.2-9.7 = 6* 9.8-10.3 = 4* 10.4-10.9 = 10* Step 1 of 2 : Determine the cumulative frequency for the third class. Step 2 of 2 : Determine the cumulative frequency for the second class. Answer: 9 + 10 + 6 = 25 Answer: 9 + 10 = 19 The following data describes grades of students in English. Complete the frequency table for this data. 85.5, 85.5, 83.6, 83.6, 79.5, 79.5, 79.4, 79.4, 78.4, 78.4, 80.2, 80.2, 78.0, 78.0, 77.9, 77.9, 90.1, 90.1, 87.9, 87.9, 79.7, 79.7, 91.8, 91.8, 84.6, 84.6, 88.6, 88.6, 83.6, 83.6, 80.2, 80.2, 77.9, 77.9, 87.6, 87.6 Determine the frequency of each class in the table shown. Answer: 77.0-79.9 = 7 80.0-82.9 = 2 83.0-85.9 = 4 86.0-88.9 = 3 89.0-91.9 = 2 Consider the following frequency table representing the distribution of hours students watch tv in a week. Hours Students Watch TV in a Week Class: Frequency*: 14-22 = 3* 23-31 = 4* 32-40 = 5* 41-49 = 11* 50-58 = 10* Step 1 of 2 : Determine the relative frequency for the fourth class as a simplified fraction. Step 2 of 2 : Determine the relative frequency for the third class as a simplified fraction. Answer: Step 1. 3 + 4 + 5 + 11 + 10 = 33 Step 2. frequency of fourth class = 11 Step 3. 11/33 = 1/3 Answer: Step 1. 3 + 4 + 5 + 11 + 10 = 33 Step 2. frequency of third class = 5 Step 3. 5/33 Width of a class Example: Width of class one Subtract the lower limit of class one by the lower limit of class two. Example: Class one: Class two: Width is = 11