Using a chart to calculate the standard deviation helps to keep the numbers organized. Drag and drop the values to complete thechart.x= meantotal the sum of (x − x)²X₁141316932mean2511 311X-mean11 511-211-8 106The sum of the deviation about the mean for a whole data set is ✓(x-mean)²94464total5104negative.a very small number.zero.the square root of the variance.the square of the difference of the mean.

Answered: Image /qna-images/answer/68f6cb3e-2fb0-400d-9941-bb919e8bc482.jpg

Answered: = mean tal-the sum of (x − x)² X₁ 14 2…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

X Y 14 25 26 28 19 27 13 21 28 31 23 24 30 31 26 27 19 29 Mean. 22 27 Std. Dev 6.08 3.28 Correlation 0.76 What is the tcritical value using the direct difference approach?
Waiting times (in minutes) of customers at a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. Find the coefficient of variation for each of the two sets of data, then compare the variation. Bank A (single line): 6.6 6.7 6.7 6.8 7.0 7.2 7.5 7.7 7.7 7.7 6.7 7.7 7.8 8.4 9.2 9.7 Bank B (individual 4.1 5.4 5.8 6.2 lines): www The coefficient of variation for the waiting times at Bank A is%. (Round to one decimal place as needed.)
one z-score unit is equivalent to ______ of the distribution. a. the variance b. the range c. the standard deviation d. the mean e. the correlation coefficient
Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims. x 3 7 15 32 75 y 40 35 30 26 18 (a) Make a scatter diagram of the data and visualize the line you think best fits the data. Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website. (b) Would you say the correlation is low, moderate, or strong? positive or negative? strong and negative moderate and negative strong and positive low and negative low and positive moderate and positive (c) Use a calculator to verify that Σx = 132, Σx2 = 6932, Σy = 149, Σy2 = 4725, and Σxy = 2997. Compute r. (Round your answer to three decimal places.)r = As x increases, does the value of r imply that y should tend to increase or decrease? Explain. Given our value of r, we cannot draw any conclusions for the behavior of y as x increases. Given our value of r, y should tend to…
x 44 55 66 77 88 P(X=x)P(X=x) 0.20.2 0.20.2 0.20.2 0.20.2 0.2 : Find the variance. Round your answer to one decimal place.
ll Sprint ? 11:30 PM 9 19% A moodle.bucknell.edu Jerry is a newly hired analyst to monitor the performance of Dunkin' Brands, an American restaurant holding company which runs two chains of fast-food restaurants: Dunkin' Donuts and Baskin-Robbins. Given the sales figures of all the stores across the United States, Jerry calculates the following statistics: Mean: the average of the sales figures. Median: the value separating the higher half from the lower half of the sales figures Mode: the number that occurs most frequently in the data Variance: it measures how far the sales figures are spread out from their average value Jerry recalls the implications of the statistics. Which one of them is correct? Select one: II
The scatterplot below shows the mean cost of an oil change for Sadie's car during each of the last 10 years. Mean Cost of Oil Change Mean Cost (dollars) 000 25 A 20 B 15 Year Using the points (2, 15) and (7, 21), what is the best estimate of what the mean cost of an oil change willbe car for Sadie's car when it is 12 years old? 10 ➤X 0 1 2 3 4 5 6 7 8 9 10 Response 3* $25 III $27 C $29 40 $31 3 points
For each of the states and Puerto Rico, the histogram below shows the average property damage (in millions of dollars) caused by tornadoes over a 50 year period. Which of the following statements is TRUE with regards to the relationship between the mean and the median? Average Tornado Damage for the 50 States and Puerto Rico (1950-1999) Average property damage (Smallions) O The median is greater than the mean. The median is less than the mean. O There is no way of knowing what kind of relationship the mean and median have. O The median is equal to the mean.
Which of the following phrases correctly defines population variance? square of the average differences of data entries of the population from the mean squared difference of the average of data entries of the population from the mean average difference of the square of data entries of the population from the mean average of the squared differences of data entries of the population from the mean
Find the mean, the median and the mode of the given data set. (Round your answers to four decimal places. If there is more than one mode, enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) S = {45, 45, 60, 70, 75, 75, 85} mean median mode
21. Which of the following statements is true regarding the sources of variation present in an analysis of regression? SSy is partitioned into variation explained by the regression model and residual variation. If most of the variability in Y is associated with residual variation, then X predicts Y. There are three sources of variation in an analysis of regression: regression variance, residual variance, and error variance. Regression variation measures variability in X, whereas residual variation measures variability in Y.
IQ tests supposedly measure our intelligence. They typically are ‘normed’ so that they have a mean of 100 and a standard deviation of 15. (Higher scores show higher intelligence.) Use the graph and use the z-score and percents from columns b and c in Table A, when relevant. If you scored 132, what is your z-score? (Interpret.) Use table A X, z(a), (b), and (c) X z (a) (b) (c) and use the graph! Write down or save your response to use in Part 2 of this quiz. Group of answer choices -2.53 z. I'm at the 98.34 percentile rank and 1.66% of people scored smarter than me. 2.13 z. I'm at the 98.34 percentile rank and 1.66% of people scored smarter than me. -2.13 z. I'm at the 1.66 percentile rank and 98.34% of people scored smarter than me. 2.53 z. I'm at the 0.57 percentile rank and 99.43% of people scored smarter than me. 2.13 z. I'm at the 1.66 percentile rank and 98.34% of people scored smarter than me. 2.53 z. I'm at the 99.43 percentile rank…

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS