1 answer

Suppose that Student A's marks throughout the term had a mean of 78 with variance 16,...

Question:

Suppose that Student A's marks throughout the term had a mean of 78 with variance 16, and that Student B's marks throughout the term had a mean of 72 with variance 36. Which of the below statements is true?

(A) Student A had a higher average and Student B was more consistent.

(B) Neither student had a higher average and Student B was more consistent.

(C) Student A had a lower average and Student B was more consistent.

(D) Student A had a lower average and was more consistent.

(E) Student A had a higher average but neither student was more consistent.

(F) Student A had a higher average and was more consistent.

(G) Neither student had a higher average and Student A was more consistent.

(H) Neither student had a higher average and neither student was more consistent.

(I) Student A had a lower average but neither student was more consistent.


Answers

for student A, x= 78, 8²16 - 6=4 for student B, ý = 72, 82 36 36=6 Thus it is clear that student A had higher average. (78772C.VA< C.V.B. The student with consistant less c.v. is more & student A is more consistant. True statement is (F) and student

.

Similar Solved Questions

1 answer
Having trouble with this one! Any help would be appreciated! 6.00 times 10^-3 mol of HBr...
Having trouble with this one! Any help would be appreciated! 6.00 times 10^-3 mol of HBr are dissolved in water to make 12.0 L of solution. What is the concentration of hydroxide ions, [OH^-], in this solution? Express your answer with the appropriate units....
1 answer
Course Home <Homework 11 Exercise 7.42 - Enhanced - with Feedback You may want to reference...
Course Home <Homework 11 Exercise 7.42 - Enhanced - with Feedback You may want to reference (Pages 295 - 299) Section 7.4 while completing this problem. Sulfuric acid dissolves aluminum metal according to the following reaction: 2 Al(s) + 3H2SO4 (aq) + Al(SO4)2 (aq) + 3H2(g) Suppose you wanted to...
1 answer
You must analyze a potential new product --- a caulking compound that Korry Materials’ R&D people...
You must analyze a potential new product --- a caulking compound that Korry Materials’ R&D people developed for use in the residential construction industry. Korry’s marketing manager thinks they can sell 115,000 tubes per year at a price of $3.25 each for 3 years, after which the pr...
1 answer
The following questions concern audit testing of the payroll and personnel cycle. Choose the best response....
The following questions concern audit testing of the payroll and personnel cycle. Choose the best response. a A common aud it procedure in the audit of payroll transactions involves tracing selected items from the payroll journal to employee time cards that have been approved by supervisory personne...
1 answer
Data concerning three of Kilmon Corporation's activity cost pools appear below: Activity Cost Pools Assembling products...
Data concerning three of Kilmon Corporation's activity cost pools appear below: Activity Cost Pools Assembling products Designing products Setting up batches Estimated Overhead Cost $ 77,010 $ 593,364 $ 45,650 Expected Activity 4,530 assembly hours 3,012 product design hours 830 batch set-ups Re...
1 answer
Based on your understanding of sea urchin and fruit fly gastrulation, would you expect the ventral...
Based on your understanding of sea urchin and fruit fly gastrulation, would you expect the ventral furrowing of the fruit fly to require an epithelial-to-mesenchymal transition? Why or why not? Please answer it in your own words....
1 answer
2. Describe how and why the European Union was created and the issues faced by this...
2. Describe how and why the European Union was created and the issues faced by this organization....
1 answer
Franklin Boot Co sells men's, women's, and children's boots. For each type of boot sold, it...
Franklin Boot Co sells men's, women's, and children's boots. For each type of boot sold, it operates a separate department that has its own manager. All departments are housed in a single store. In recent years, the children's department has operated at a net loss and is expected to ...
1 answer
Determine the axial forces in the members of the truss and indicate whether they are in...
Determine the axial forces in the members of the truss and indicate whether they are in tension (T) or compression (C). 100 N H15 A 3 m B с 4 m 4 m (*counterclockwise-positive; clockwise-negative) (*beam weight is negligible) (*Do not forget to draw the free-body diagrams! Not only one FBD!) (...
1 answer
Find the least squares solution to the inconsistent system    a. b. c. d. e. f. Find...
Find the least squares solution to the inconsistent system    a. b. c. d. e. f. Find the least squares solution to the inconsistent system Ax = b 110 110 A= b = 101 [101 1 38 2 Oa. -1 2= 1 1 Ob. 5 X= -3 0 C. 5 X=t + 3 tec 1 0 O d. 7 2 + 8 tec X=t| -3 11 -6...
1 answer
Write clearly in complete sentence or show all work Propose a mechanism for the following reaction:...
write clearly in complete sentence or show all work Propose a mechanism for the following reaction: Vinyl acetate is the monomer for the production of polyvinyl acetate), the major use of which is as an adhesive in the construction and packaging industry, but it is also used in the paint and coatin...
1 answer
QUESTION 24 Assume that house prices in a neighborhood are normally distributed with a standard deviation...
QUESTION 24 Assume that house prices in a neighborhood are normally distributed with a standard deviation of S20,000. A random sample of 16 observations is taken. What is the probability that the sample mean differs from the population mean by less than $5,000? TTTT Paragraph - Arial 3 (12pt) E. T. ...
1 answer
Why is 3938 the right answer? Question 18 0/1 pts Russin Tax Planning Service bought computer...
why is 3938 the right answer? Question 18 0/1 pts Russin Tax Planning Service bought computer equipment for $21,000 on January 1, 2016. It has an estimated useful life of four years and zero residual value. Russin uses the straight-line method to calculate depreciation and records depreciation expe...
1 answer
On April 1, Jiro Nozomi created a new travel agency, Adventure Travel. The following transactions occurred...
On April 1, Jiro Nozomi created a new travel agency, Adventure Travel. The following transactions occurred during the company’s first month. April 1 Nozomi invested $35,000 cash and computer equipment worth $25,000 in the company in exchange for common stock. 2 The company rented fur...
1 answer
3) Complete the following to prove lim (4x – 3)= 5 using the epsilon-delta definition of...
3) Complete the following to prove lim (4x – 3)= 5 using the epsilon-delta definition of a limit. x2 Part 1: Analysis (i.e. "guess” a 8) For every we need to if then (Complete these steps as you want in order to find delta.) This suggests that we should choose Part 2: Proof: (show th...
1 answer
A filter is designed with the following specifications. The anthracite and sand have density of 1700...
A filter is designed with the following specifications. The anthracite and sand have density of 1700 and 2650 kg/m3, respectively, and the design temperature is 10°C. For a given sample (A, B, C, D, or E; to be selected by instructor), calculate the clean-bed head loss 11-4 Item Bed type Filtrat...
1 answer
Chapter 4, Problem 4/010 Each of the five connected partices has a mass of 0.6 kg,...
Chapter 4, Problem 4/010 Each of the five connected partices has a mass of 0.6 kg, and G is the mass center of the system, At a certain instant the angular velocity of the body is do-2.5 rad/s and the linear velocity of G is ve- 4.4 m/s in the direction shown, Determine the linear momentum of the bo...
1 answer
Taran Corporation purchased a machine on January 1, 2017, for $55,000. Before the machine was utilized...
Taran Corporation purchased a machine on January 1, 2017, for $55,000. Before the machine was utilized in a productive capacity, it was needed to build a support in value of $7,000 to accommodate the machine. For security reasons, a 5-years insurance policy was purchased for the machine in value of ...