Math-150-Exam Worksheet printable pdf download

Math-150-Exam Worksheet

Math-150-Exam #1 (Chapter 1, 2 & 3)

Practice Exam

Name___________________________________

Date: _____________________

Instructions: Show all work neatly. Answers without support will receive no credit. Your answers will be evaluated on

the correctness, completeness and use of mathematical concepts we have covered.

Provide an appropriate response.

1) Explain what bias there is in a study done entirely online.

Use critical thinking to address the key issue.

2) You plan to make a survey of 200 people. The plan is to talk to every 10th person coming

out of the school library. Is there a problem with your plan?

3) An airline company advertises that 100% of their flights are on time after checking 5

randomly selected flights and finding that these 5 were on time.

Identify the sampling technique used.

4) Thirty-five sophomores, 50 juniors and 37 seniors are randomly selected from 538

sophomores, 448 juniors and 394 seniors at a certain high school.

5) Every fifth person boarding a plane is searched thoroughly.

6) At a local community college, five statistics classes are randomly selected out of 20 and all

of the students from each class are interviewed.

Solve the problem.

7) Part A-Construct one table that includes relative frequencies, cumulative frequencies,

Midpoints, and Class Boundaries.

Relative

Cumulative

Class

Frequency

Midpoint

Frequency

Boundaries

1-5

6-10

11-15

16-20

Part B- Construct a Histogram and Ogive based on the frequency distribution above.

Math-150-Exam Worksheet