Question 1 of 20 1.0 points numerical variables can be subdivided

I really neeed help with this
Question 1 of 20 1.0 Points
Numerical variables can be subdivided into which two types?A.Cross-sectional and discrete B.Diverse and categorical C.Discrete and continuous D.Nominal and progressive
Reset Selection
Question 2 of 20 1.0 Points
Which of the following statements is true regarding the data set 10, 10, 10, 10, and 10?A.The range is zero B.The standard deviation equals zero C.The interquartile range equals zero D.all of the above
Reset Selection
Question 3 of 20 1.0 Points
Which of the following correctly describes the relationship between a sample and a population? A.A sample is a group of subjects selected from a population to be studied. B.A sample is a group of populations that are subject to observation. C.A population and a sample are not related. D.A population is a group of samples that may or may not be included in a study
Reset Selection
Question 4 of 20 1.0 Points
A histogram that has a single peak and looks approximately the same to the left and right of the peak is called:A.balanced B.proportional C.bimodal D.symmetric
Reset Selection
Question 5 of 20 1.0 Points
The amount of time needed to run the Boston marathon is an example of which type of variable?A.qualitative B.none of the above C.discrete D.continuous
Reset Selection
Question 6 of 20 1.0 Points
The length of the box in the boxplot portrays theA.range B.median C.interquartile range D.mean
Reset Selection
Question 7 of 20 1.0 Points
Suppose that a histogram of a data set is approximately symmetric and “bell shaped”. Approximately what percent of the observations are within one standard deviation of the mean?A.68% B.95% C.50% D.99.7%
Reset Selection
Question 8 of 20 1.0 Points
Which of the following statements are false?A.A categorical variable is nominal if there is natural ordering of its possible values. B.A variable is numerical if meaningful arithmetic can be performed on it. C.Zip codes are usually treated as categorical variables, although they appear to be numerical. D.All of the above
Reset Selection
Question 9 of 20 1.0 Points
Which of the following statements are false regarding a boxplot?A.The height of the box has no significance. B.The length of the box equals the range of the data. C.Boxplots can be used to either describe a single variable in a data set or to compare two (or more) variables D.The right and left of the box are the third and first quartiles
Reset Selection
Question 10 of 20 1.0 Points
The total frequency of the data whose ogive is shown below is approximately
A.18 B.90 C.34 D.12
Reset Selection
Question 11 of 20 1.0 Points
Gender and State are examples of which type of data?A.Categorical data B.Discrete data C.Ordinal data D.Continuous data
Reset Selection
Question 12 of 20 1.0 Points
For a boxplot, the vertical line inside the box indicates the location of the A.inter quartile range B.median C.mode D.mean
Reset Selection
Part 2 of 3 –
Question 13 of 20 1.0 Points
Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), “E” or “e” (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where “a” and “b” need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
A student scored 84 points on a test where the mean score was 79 and the standard deviation was 4. Find the student’s z score, rounded to 2 decimal places, and place it in the blank.
Question 14 of 20 1.0 Points
Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), “E” or “e” (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where “a” and “b” need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
A sample of 150 students at a State University was taken after the final business statistics exam to ask them whether they went partying the weekend before the final or spent the weekend studying, and whether they did well or poorly on the final. The following table contains the result.
Did Well in Exam Did Poorly in Exam Studying for Exam 60 15 Went Partying 22 53
Of those in the sample who did well on the final exam, what percentage of them went partying the weekend before the exam? Place your answer in the blank, rounded to 2 decimal places. Do not use a percentage sign (%). For example, 44.44 would be a legitimate answer.
Question 15 of 20 1.0 Points
Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), “E” or “e” (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where “a” and “b” need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
The histogram below represents scores achieved by 250 job applicants on a personality profile.
How many job applicants scored above 50? Place your answer in the blank. Do not use any stray symbols. For example, 123 would be a legitimate answer.
Question 16 of 20 1.0 Points
Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), “E” or “e” (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where “a” and “b” need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
A statistics professor has just given a final examination in his statistical inference course. He is particularly interested in learning how his class of 40 students performed on this exam. The scores are shown below.
77 81 74 77 79 73 80 85 86 7383 84 81 73 75 91 76 77 95 7690 85 92 84 81 64 75 90 78 7882 78 86 86 82 70 76 78 72 93
What is the mean score on this exam? Place your answer, rounded to two decimal places in the blank. For example, 65.78 would be a legitimate entry.
Question 17 of 20 1.0 Points
Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), “E” or “e” (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where “a” and “b” need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
A sample of 150 students at a State University was taken after the final business statistics exam to ask them whether they went partying the weekend before the final or spent the weekend studying, and whether they did well or poorly on the final. The following table contains the result.
Did Well on Exam Did Poorly on Exam Studying for Exam 60 15 Went Partying 22 53
If the sample is a good representation of the population, what percentage of those who did poorly on the final exam should we expect to have spent the weekend studying? Place your answer in the blank, rounded to 2 decimal places. Do not use a percentage sign (%). For example, 44.44 would be a legitmate answer.
Question 18 of 20 1.0 Points
Accepted characters: numbers, decimal point markers (period or comma), sign indicators (-), spaces (e.g., as thousands separator, 5 000), “E” or “e” (used in scientific notation). NOTE: For scientific notation, a period MUST be used as the decimal point marker. Complex numbers should be in the form (a + bi) where “a” and “b” need to have explicitly stated values. For example: {1+1i} is valid whereas {1+i} is not. {0+9i} is valid whereas {9i} is not.
The following data represent the number of children in a sample of 10 families from Chicago: 4, 2, 1, 1, 5, 3, 0, 1, 0, and 2.
Compute the variance of the data. Place your answer, rounded to two decimal places, in the blank. For example, 3.45 would be a legitimate entry.
Part 3 of 3 –
Question 19 of 20 1.0 Points
Age, height, and weight are examples of numerical data. True False
Reset Selection
Question 20 of 20 1.0 Points
Phone numbers, Social Security numbers, and zip codes are examples of numerical variables True False
Reset Selection

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more