The total blood cholesterol level was measured for each of 20 adults. Here are the 20 measurements (in mg/dL).126, 145, 152, 157, 166, 171, 183, 184, 184, 184, 188, 193, 195, 198, 207, 208, 214, 215, 227, 247Send data to calculatorFrequency86420HA1252484150175200Cholesterol level (in mg/dL)(a) For these data, which measures ofcentral tendency take more than one value?Choose all that apply.2252250MeanMedianModeNone of these measures (b) Suppose that the measurement 126 (thesmallest measurement in the data set) werereplaced by 48. Which measures of centraltendency would be affected by the change?Choose all that apply.(c) Suppose that, starting with the originaldata set, the largest measurement wereremoved. Which measures of centraltendency would be changed from those ofthe original data set? Choose all that apply.(d) Which of the following best describes thedistribution of the original data? Choose onlyone.MeanMedianModeNone of these measuresMeanMedianModeNone of these measuresO Negatively skewedO Positively skewedRoughly symmetrical

Mean, median, and mode are measures of central tendency used to describe the center of a data set.…

Answered: (b) Suppose that the measurement 126…

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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5. Which of the following statements is not true? a. In symmetric distributions, the mean and the median will be approximately equal. b. When looking at the shape of the distribution, a distribution is skewed to the left when the left tail is shorter than the right tail. c. A stem-and-leaf display contains all the information needed to create a box plot. d. Relative frequencies are particularly useful when comparing the frequency distributions of two different size sets of data. e. The histogram of a normal sample should have a distribution shape that is not skewed. 6. Which of t a. standard deviation b. interquartile range c. median d. coefficient of variation e. all of the above are measured in the same units as the data. following descriptive statistics is not measured in the same units as the data? 7. A fair penny is tossed three times. The probability of observing a heads two times in a row is a. 1/3 b. 2/3 c. 1/4 d. 3/8 e. 1/2 8. Consider the following variable: The difference…
The figure shows population density (people per square mile) for all states of a certain country. The states are divided into four geographical regions: A, B, C, and D. Answer the questions below. D- 0 100 200 300 400 500 600 700 800 900 1000 1100 People per Square Mile Why is it best to compare medians and interquartile ranges for these data, rather than comparing means and standard deviations? OA. These data are fairly symmetric and do not have outliers, and the median and interquartile range provide more reliable information in these circumstances. B. Some of these data have outliers and/or are skewed, and the median and interquartile range amplify the effects of outliers and skewness. OC. Some of these data have outliers and/or are skewed, and the median and interquartile range are resistant to outliers. OD. Some of these data have vastly different centers, and the median and interquartile range provide more reliable information in these circumstances. List the approximate median…
Use the graph to answer the following questions. Frequency 7 6+ 5 40 Cost of Student Groceries Cost ($) a. Is this graph symmetric or skewed? 100 b. For this graph, is mean or median the best choice for the measure of center? c. For this graph, is standard deviation or IQR the best choice for the measure of variation? d. For this graph, the mean is expected to be the median. (higher than, lower than, or about the same as?)
The following set of data represents the number of orders filled by a national-chain restaurant during a two week period. Construct a five number summary for the the data. 66, 75, 68, 89, 86, 73, 67, 75, 75, 82, 85, 74, 67, 61 (Round to the nearest hundredth, if needed). Min _________________ Lower Quartile _________________ Median __________________ Upper Quartile _________________ Maximum __________________ What is the range and the interquartile range (IQR)? Range __________________ Interquartile Range (IQR) ___________________
Which of the following is NOT true about statistical graphs? Choose the correct answer below. O A. They can be used to identify extreme data values. O B. Similar graphs can be constructed in order to compare data sets. O C. They utilize areas or volumes for data that are one-dimensional in nature. O D. They can be used to consider the overall shape of the distribution. ...
Match the best graphic to be used for each scenario. To compare the choleterol levels between males and females v [ Chopse] box plot pie chart side by side box plot To display the breakdown of diet types (vegan, vegetarian, low carb, low fat)fat stem plot To describe the distribution of fasting blood [ Choose ] sugar levels among elderly diabetic patients To calculate the proportion of people in a study sample who weigh less than the [Choose] sample meanhah No new data to save. Last checked MacBook Air
please answer 4 and 5
1) The question screenshot attached down below answer all and just need final answer
11. A manager of a department times how many hours each person works within her department. 43 42 24 50 41 28 47 47 39 59 29 31 39 42 What is the mean and median of the data? Group of answer choices Mean = 40.1; Median = 41.5 Mean = 40.0; Median = 42.5 Mean = 40; Median = 42 Mean = 40.8; Median = 47
10. Consider the box plot shown below: 2 4 6 8 10 12 14 16 a. What is the median of the data set? b. What are the upper and lower quartiles of the dataset? c. What is the interquartile range of the dataset? d. Is the data set skewed to the left, skewed to the right, of symmetric? e. What percentage of the observations in the data set lie to the right of the median? To the left of the upper quartile?
Which one of the following summary statistics best matches the data on the abundance of various bird species shown here? Frequency (No. species) 25 20 15 10 5 0 0 Mean = Mean = Mean = 100 200 300 400 500 600 Abundance (No. individuals) 75 individuals, s.d. = 122 individuals 300 individuals, s.d. = 14871 individuals 10 individuals, s.d. = 10 individuals Mean = 10 individuals, s.d. = 14871 individuals Mean 75 individuals, s.d. = 14871 individuals
1.) Data can be misrepresented through graphs. Try to find an example of a misleading graph in the real world. Check magazines, papers, internet, etc. Then upload the graph and say what can be misleading. 2.) What are the three measures of central tendancy and how do the mean and median give us an idea of how the data is distributed? 3.) What are the three measures of dispersion.

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