Calculate the variance and standard deviation for samples for which a. n = 10 , x2 =
Question:
a. n = 10 , ∑x2 = 84, ∑x = 20
b. n = 40, ∑x2 = 380, ∑x = 100
c. n = 20, ∑x2 = 18, ∑x = 17
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 75% (12 reviews)
a b c n ...View the full answer
Answered By
Jacob Festus
I am a professional Statistician and Project Research writer. I am looking forward to getting mostly statistical work including data management that is analysis, data entry using all the statistical software’s such as R Gui, R Studio, SPSS, STATA, and excel. I also have excellent knowledge of research and essay writing. I have previously worked in other Freelancing sites such as Uvocorp, Essay shark, Bluecorp and finally, decided to join the solution inn team to continue with my explicit work of helping dear clients and students achieve their Academic dreams. I deliver, quality and exceptional projects on time and capable of working under high pressure.
4.90+
1253+ Reviews
2845+ Question Solved
Related Book For
Question Posted:
Students also viewed these Statistics questions
-
Calculate the variance and standard deviation of the returns of stocks AB, CD, and EF in the portfolio example of this chapter. See Figure 7.8. Figure 7.8 Returns of Stock AB Returns of Stock CD 60%...
-
Calculate the variance and standard deviation of returns for DE, INTC, PFE and the S&P 500.
-
Calculate the variance and standard deviation of returns for CVX, YUM, JNJ and the S&P 500.
-
What is the importance of collecting and interpreting data and information about competitors? What practices should a firm use to gather competitor intelligence and why?
-
What is the effect of a minimum wage law in a monopsony labor market?
-
The table below contains specifications for five different steady-state Rankine heat engines, AE. Fill in all the missing data. NOTE: All numbers in the table are given as ABSOLUTE VALUES; determine...
-
You roll a six-sided die. Find the probability of each event. 1. Event A: rolling a 3 2. Event B: rolling a 7 3. Event C: rolling a number less than 5
-
At fiscal year-end February 2, 2008, Target Corporation had the following assets and liabilities on its balance sheet (in millions): Current liabilities......$11,782 Long-term debt.......15,126 Other...
-
Fire Inc. recently issued new securities (common shares and bonds) to finance a new project with a cost $16 million. The equity issued had a flotation cost of 8%, while the debt issued had a...
-
Write a general expression using letters to abstract a general form from the given set of numerical data. a. 23 = 3 + 3 25 = 5 + 5 214 = 14 + 14 227 = 27 + 27 b. 23 + 25 = 28 712 + 78 = 720 540 + 52...
-
Can the variance of a data set ever be negative? Explain. Can the variance ever be smaller than the standard deviation? Explain.
-
Calculate the range, variance, and standard deviation for the following samples: a. 4, 2, 1, 0, 1 b. 1, 6, 2, 2, 3, 0, 3 c. 8, 2, 1, 3, 5, 4, 4, 1, 3 d. 0, 2, 0, 0, 1, 1, 2, 1, 0, 1, 1, 1, 0, 3, 2,...
-
Why did the 1966 amendments to the RLA establish special boards of adjustment?
-
Two firms have entered an agreement to set prices. The accompanying payoff matrix shows profit for each firm in a market depending upon whether the firm cheats on the agreement by reducing its...
-
Why might the investor in a mutual fund be faced with a potential tax liability arising from capital gains even though the investor did not benefit from such a gain?
-
Compared to accounting principles currently in use, the pooling method BetterCare used for its Statewide Medical acquisition has most likely caused its reported: A. revenue to be higher. B. total...
-
What is the order of growth of the running time of the following two functions? Each function takes a string as an argument and returns the string reversed. public static String reversel (String s) {...
-
In the Josephus problem from antiquity, \(n\) people are in dire straits and agree to the following strategy to reduce the population. They arrange themselves in a circle (at positions numbered from...
-
Repeat Prob. 11113 for double-pane windows that are gray-tinted. Data from problem 113 A house located in Boulder, Colorado (40 N latitude), has ordinary double-pane windows with 6-mm-thick glasses...
-
Ashlee, Hiroki, Kate, and Albee LLC each own a 25 percent interest in Tally Industries LLC, which generates annual gross receipts of over $10 million. Ashlee, Hiroki, and Kate manage the business,...
-
Determine the potential energy of the system at an arbitrary instant for the systems of Figure P7.2. Put the potential energy in a quadratic form. Use the quadratic form to determine the stiffness...
-
A data set has a first quartile of 42 and a third quartile of 50. Compute the lower and upper limits for the corresponding box plot. Should a data value of 65 be considered an outlier?
-
U.S. companies lose $63.2 billion per year from workers with insomnia. Workers lose an average of 7.8 days of productivity per year due to lack of sleep (Wall Street Journal, January 23, 2013). The...
-
The days to maturity for a sample of five money market funds are shown here. The dollar amounts invested in the funds are provided. Use the weighted mean to determine the mean number of days to...
-
3. Consider an economy in which the equilibrium solves the optimal growth problem 00 max B' (0 log(C)+(10) log(NhL,)) s.t.: t=0 C + K = (1 8)K, + AK (y'L)-a t C > 0 t+1 K>0 t+1 Ko is given 0 N = n'No...
-
Evaluate each limit. a) lim (x - 3x + 2) X-0 b) lim x2-x-2 X-2 x-2 c) lim x-3 X-9 X-9
-
If the variance of a probability was computed to be 3.6 grams, what is the standard deviation? Carlson Jewelers permits the return of their diamond wedding rings, provided the return occurs within...
Study smarter with the SolutionInn App