Ask Homework Help/Study Tips Expert

1. Which one of the following variables is categorical?

A) Number of homeruns hit in a professional baseball player's career

B) The number of students on a bus

C) The manufacturer of an automobile

D) The daily high temperature in Chicago

2. The distribution of salaries for most businesses is known to be skewed to the right or positively skewed. Which of the following would be the BEST measure to determine the location of the center of the distribution?

A) Mode

B) Mean

C) Variance

D) Median

3. A study published in 2000 attempted to estimate the proportion of Florida residents who were willing to spend more tax dollars on protecting the Florida beaches from environmental disasters. Twenty-four hundred Florida residents were surveyed. Which of the following is the population used in the study?

A) All Florida residents

B) All Florida residents who lived along the beaches

C) The 2400 Florida residents surveyed

D) All residents of the United States

4. When reporting the five number summary for a dataset, the interquartile range (IQR) is one of these five numbers.

A) False

B) True

5. Parking at a large university has become a very big problem. University administrators are interested in determining the average parking time it takes for stud3ents to find a parking spot. A study is done that includes the parking times for 250 students at the university. Which of the following graphs should NOT be used to display these parking times?

A) Histogram

B) Stem and leaf

C) Box plot

D) Bar Chart

6. A statistic is a summary measure calculated from the:

A) Sample

B) Parameter

C) Population

7. If the standard deviation of a set of scores is 7.5, what would the value of the standard deviation become if 5 pints were added to every score in the set?

A) Stay the same

B) 12.5

C) 37.5

D) Cannot be determined without further information

8. A computer network manager wants to test the reliability of some new expensive fiber optic cables that the computer department just received. The department received 4 boxes, each containing 30 cables. The manager does not have the time to test each cable so she selects one cable at random from each of the four boxes. What is the population?

A) The 4 cables choses

B) The 120 cables

C) All fiber optic cables

9. Suppose that heights of college-age men have approximately a bell-shaped distribution with a mean = 70 inches and a standard deviation = 4 inches. Which choice best completes the following sentence? About 68% of college-age men have a height between:

A) 58 and 82

B) 62 and 78

C) 68 and 72

D) 66 and 74

10.Variable Gender N N*

Q1 Median Q3Weight Female 175 2 120.00 130.00 145.00

Male 130 5 155.00 170.00 185.25

The above is the Minitab output for the weight by Gender from a Class Survey. From the output, which of the following is the best interpretation of the median for male students who answered the question?

A) 50 percent of the male students reported a weight of 170 pounds.

B) 50 percent of the male students reported a weight of less than 170 pounds.

C) 50 percent of the male students reported weight of 170 pounds or less.

11.From the histogram above, which of the following BEST describes the shape of the distribution?

A) Positively skewed or skewed right

B) Negatively skewed or skewed left

C) Uniform

D) Bell shaped

12. When graphing categorical data, which of the following graphs would be MOST appropriate?

A) Pie Chart

B) Box plot

C) Histogram

D) Stem and Leaf

13. Which of the following BEST completes the sentence - The variance measures that total spread of the data around the:

A) Mode

B) Mean

C) Median

D) Standard Deviation

14. A list of 7 systolic blood pressures is: 108, 112, 116, 120, 124, 134, 148. What is the median for this list?

A) 122

B) 120

C) 114

D) 112

15. Correctly identify the following random variable as either categorical or quantitative: The amount of money spent on text books.

A) Categorical

B) Quantitative

16. In a small graduate math class with only five students, the professor gives a difficult, unannounced quiz. For the scores are lower than 30, but one students gets a 95. Which of the following is true?

A) The median and mean scores are the same.

B) It is impossible to tell whether the mean to the median is higher

C) The mean score is greater than the median score

D) The mean score is less than the median score

17.Variable N Mean Minimum Q1 Median Q3 Maximum

Studying 451 13.6 0 7 10 18 70

Shown above is a summary of response to a Stat200 survey where students were asked how many hours they study each week. Use this to complete the following sentence: About 25% of the students said they study more than ___hours per week.

A) 10

B) 13.6

C) 7

D) 18

18. There are 16 students in a class. Every day the instructor randomly calls on five different students, and a student cannot be called on twice in the same class. Today the instructor has already called on four students, and Tony has not yet been called on. Given this information, what's the probability that Tony will be the fifth student called?

A) 1/4

B) 1/2

C) 1/12

D) 1/16

19.Variable N Mean Minimum Q1 Median Q3 Maximum

Studying 451 13.6 0 7 10 18 70

Shown above is a summary of responses to a Stat200 survey where students where asked how many hours they study each week. Which choice is an interval that gives the middle 50% of the weekly hours spent studying for these students?

A) 7 to 18

B) 0 to 10

C) 0 to 13.6

D) 10 to 70

20. You finally graduated from college and are interviewing for two jobs. You estimate the probability of receiving a job offer from Company A to be 0.4. The probability is 0.36 that both Company A and Company B will offer you a job. Given Company A offers you a job, what is the probability that Company B will also offer you a job?

A) 0.144

B) 1.11

C) 0.90

D) 0.36

21. The distribution of blood types among white Americans is approximately as follows: 37% type A, 13% type B, 44% type O, and 6% type AB. Suppose that the blood types of married couples are independent and that both the husband and wife follow this distribution. What is the probability that one person of a randomly chosen couple has type A blood and the other has type B?

A) 0.0484

B) 4.81

C) 0.0962

D) 0.2400

E) .05000

22.Define the events R = {yes, date difference race} and S - {yes, approve same sex}. Are the events R and S independent?

A) The two events are dependent because P(R)*P(S) equals P(R and S)

B) The two events are dependent because P(R)*P(S) does not equal P(R and S)

C) The two events are independent because P(R)*P(S) does not equal P(R and S)

D) Need more information to tell if independent

E) The two events are independent because P(R)*P(S) equals P(R and S)

Homework Help/Study Tips, Others

  • Category:- Homework Help/Study Tips
  • Reference No.:- M9787929

Have any Question?


Related Questions in Homework Help/Study Tips

Review the website airmail service from the smithsonian

Review the website Airmail Service from the Smithsonian National Postal Museum that is dedicated to the history of the U.S. Air Mail Service. Go to the Airmail in America link and explore the additional tabs along the le ...

Read the article frank whittle and the race for the jet

Read the article Frank Whittle and the Race for the Jet from "Historynet" describing the historical influences of Sir Frank Whittle and his early work contributions to jet engine technologies. Prepare a presentation high ...

Overviewnow that we have had an introduction to the context

Overview Now that we have had an introduction to the context of Jesus' life and an overview of the Biblical gospels, we are now ready to take a look at the earliest gospel written about Jesus - the Gospel of Mark. In thi ...

Fitness projectstudents will design and implement a six

Fitness Project Students will design and implement a six week long fitness program for a family member, friend or co-worker. The fitness program will be based on concepts discussed in class. Students will provide justifi ...

Read grand canyon collision - the greatest commercial air

Read Grand Canyon Collision - The greatest commercial air tragedy of its day! from doney, which details the circumstances surrounding one of the most prolific aircraft accidents of all time-the June 1956 mid-air collisio ...

Qestion anti-trustprior to completing the assignment

Question: Anti-Trust Prior to completing the assignment, review Chapter 4 of your course text. You are a manager with 5 years of experience and need to write a report for senior management on how your firm can avoid the ...

Question how has the patient and affordable care act of

Question: How has the Patient and Affordable Care Act of 2010 (the "Health Care Reform Act") reshaped financial arrangements between hospitals, physicians, and other providers with Medicare making a single payment for al ...

Plate tectonicsthe learning objectives for chapter 2 and

Plate Tectonics The Learning Objectives for Chapter 2 and this web quest is to learn about and become familiar with: Plate Boundary Types Plate Boundary Interactions Plate Tectonic Map of the World Past Plate Movement an ...

Question critical case for billing amp codingcomplete the

Question: Critical Case for Billing & Coding Complete the Critical Case for Billing & Coding simulation within the LearnScape platform. You will need to create a single Microsoft Word file and save it to your computer. A ...

Review the cba provided in the resources section between

Review the CBA provided in the resources section between the Trustees of Columbia University and Local 2110 International Union of Technical, Office, and Professional Workers. Describe how this is similar to a "contract" ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As