Homework # 2 (Due on Friday, 09/ 14, by 5 pm) Show all formulas, work, and provi
ID: 1134153 • Letter: H
Question
Homework # 2 (Due on Friday, 09/ 14, by 5 pm) Show all formulas, work, and provide your answers on separate sheets of paper for all of the following questions (NB: Do not write answers on these sheets of paper). In a class of 75 students, a survey was taken regarding the type of transportation students used to get to school finding that 24 students drove, 33 took public transportation, and 18 walked. What proportion of students drove? What percentage did not drive? What percentage of the class walked? 1. 2. 3. Suppose you have the following Fruit Types: Papaya Orange Grapes Apple 4. Which level of measurement do they belong to? b. Ordinal data c. Interval data d. None a. Nominal data Lower and Upper Limits/ Midpoints (Questions 5 and 6) 5. What are the lower and upper class limits for a class interval of 90-942 6. What is the midpoint of the class interval 90-94?Explanation / Answer
Question 1
Total number of students = 75 students
Total number of students that drive = 24 students
Calculate the proportion of students that drove -
Proportion = [Total number of students that drive/Total number of students] * 100
Proportion = [24/75] * 100 = 32%
Thus,
The proportion of students that drove is 32 percent.
Question 2
Total number of students = 75 students
Total number of students that drive = 24 students
Total number of students that did not drive = Total number of students - Total number of students that drive
Total number of students that did not drive = 75 - 24 = 51 students
Calculate the percentage of students that did not drive -
Percentage = [Total number of students that did not drive/Total number of students] * 100
Percentage = [51/75] * 100 = 68%
Thus,
The percentage of students that did not drive is 68 percent.
Question 3
Total number of students = 75 students
Total number of students that walked = 18 students
Calculate the proportion of students that walked -
Proportion = [Total number of students that walked/Total number of students] * 100
Proportion = [18/75] * 100 = 24%
Thus,
The percentage of class that walked is 24 percent.
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