Which of the followings is NOT a correct statement about fourth-spread?O a. Conceptually, it is different from "interquartile" range of a distribution.O b. It can be used to indicate variability of a distributionO c. It refers to the difference in score values between the upper and lower fourths of a distributiond. In a box-plot display, fourth-spread is indicated by the 'box' in the middle of the graph

Fourth spread: Fourth spread is used to find the measure of variability of distribution. It is…

Answered: Which of the followings is NOT a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Under what circumstances would you consider the mean, the median and the mode be the most suitable averages to be used to describe the central tendency of distribution. Also highlight the desirable qualities of a good average.
2. What does it mean for a scatter plot to have a negative trend? O A. Higher c-values tend to go with higher y-values. OB. Higher -values tend to go with lower y-values. OC. The x- and y-values appear to be unrelated. OD. None of these are true.
1. The two plots have similar distrubutions. Are the distrubutions skewed left, approximtly symmetric, or skewed right? 2. Which is greater, the mean or the median, within each plot? Why does this make snese, gicen the type of distrubution you identified in the first part? 3. The population has drastically declined over recent years. Does the data show a difference in bee prefrence towards high quality hives versus how quality hives? Usse statistical evidennce to support your response.
The table gives information on majors at a certain college. Sketch an appropriate graph of the distribution, and comment on its important features. Click the icon to view the table of majors information. One type of graph appropriate for showing this distribution is a bar chart. Which of the following bar charts correctly shows the given distribution? ○ A. Porcentage О в. Q 50- 50- 40- 40- 30- 20 30- 20- G 10- 10- 0+ 0+ HSS MS T Major H'SS'MS' T Major A. Pie chart ○ C. 50- Q 40- Percentage 30- 20 10- 0+ HSS MSI Major Which of the following would also be appropriate graphs for showing the given distribution? Select all that apply. ☐ ☐ ☐ ☐ B. Stemplot C. Pareto chart D. Histogram E. Dotplot F. None of the above Which of the following is the best description of the distribution's important features? OA. The mode is Social Science (SS). OB. The mode is Humanities (H). Majors ○ D. 50- Q Percentage 40- 30- 20- 10- 0+ H SS MSI Major Major H. Humanities SS. Social Science Percentage 39 17 MS.…
6. When the mean is used to measure the location of a set of observations, you would usually measure the spread or dispersion of the observations by giving the (a) correlation. (b) first and third quartiles. (c) five-number summary. (d) standard deviation.
True or false- The interquartile range is the distance between the lowest score and in the middle 50% of the distribution, and the highest score in the middle 50% of the distribution.
The interquartile range is more susceptible to outliers in the data than is the range A. True B. False
Describe the importnat features of the distribution by identifying the mode, overall shape, and outliers. a. Which measure of center (mean or median) and which measure of variability (Standard deviation or IQR) would be best to describe the distrubution and why?
General Social Survey (GSS) 2006 collected the data of the number of people in each household in the U.S. Question: Describe the shape of the distribution. Skewed to the left, or positively skewed Skewed to the left, or negatively skewed Not skewed, or (almost) symmetrical Skewed to the right, or positively skewed Skewed to the right, or negatively skewed
The accompanying histogram shows the lengths of hospital stays (in days) for all female patients admitted to a certain hospital during one year with a primary diagnosis of acute myocardial infarction (heart attack). Complete parts (a) through (c) below. a) From the histogram, determine whether the mean or median is larger. Explain. A. Because the distribution is nearly symmetric, the mean is expected to be larger than the median. B. Because the distribution is nearly symmetric, the mean is expected to be about the same as the median. C. Because the distribution is skewed to the high end, the mean is expected to be larger than the median. D. Because the distribution is skewed to the high end, the mean is expected to be smaller than the median. E. Because the distribution is skewed to the low end, the mean is expected to be larger than the median. F. Because the distribution is skewed to the low end, the mean is expected to be…
Describe the natures of the two distributions (uniform, normal, skewed left, skewed right), and identify possible outliers.
Suppose you work in the personnel department of a firm that just finished training a group of its employees and you have been requested to review the performance of the trainees on their final examination. The mean and standard deviation of the test scores are 80 and 5. Additional information indicated that the median of the test scores was 75. What type of distribution most likely describes the shape of the test scores? Skewed left Symmetric O There is not enough information to answer this question. O Skewed right

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