# The standard deviation of given population is 4.5 with a mean of 60 and the refit population has a standard deviation of 5.2 with a mean of 75. Calculate the coefficient of variation for both populations and comment on the

15,651 questions, page 91
1. ## Math

Write a cubic function (in standard form) whose graph passes through given points: (-4), (0,10), (2,0) ,(5,0)

asked by Emilyn on November 13, 2016
2. ## trig

The point (-3, 4) is on the terminal side of angle θ in standard position. Find cot θ.

asked by tony on June 11, 2013
3. ## statistics/ Help!

What is the probability of pulling a heart from a standard (52-card) deck of playing cards? A. .25 B. .50 C. .75 D. 1.0 Thanks very much!

asked by StudentD on August 21, 2012
4. ## precal

Preform the indicated operations and write the results in standard form. ( i= imaginary number) √-12(√-4-√2)

asked by katie on August 21, 2012
5. ## Chemistry

how can you tell if something with oxidize or reduce some other thing, based on the standard reduction potential table?

asked by K on December 11, 2013
6. ## Math

Change the following to the standard equation of the ellipse 1. 5x^2 + 3y^2 = 15 2. x^2 + 12y^2 = 16 3. 3y^2 + 4x^2 = 3 And please can you give the value of a, b and c of this equations... so that I can sketch it....

asked by Tsunayoshi on August 25, 2014
7. ## Math

A student rolls three standard six-sided dice. What is the probability that the sum of the numbers that come up will be 18?

asked by Anonymous on December 13, 2012
8. ## math

Three cards are chosen at random from a standard 52-card deck. What is the probability that they are not all the same color?

asked by Isabel on July 28, 2018
9. ## Algebra

Write the expression as a complex number in standard form. ____5____ 2- i =2+5i Did I get the right answer?

asked by Emma on March 26, 2013
10. ## Math(is this correct?)

Write the standard form of the equation of the circle that passes through (0,4) and has its center at (-3, -1) (x+3)^2+(y+1)^2=sqrt34

asked by House on October 6, 2008
11. ## ALG 2

Determine the standard form of the equation of the line that passes through (-6,6) and (3,-2). My slope is -8/9 Y=mx+b -2=-8/9(3) + b SOLVING FOR b -2=-24/9 + b WHAT DO I DO NOW

asked by MOM50 on August 22, 2015
12. ## chemistry

To make 10 mL of 25 mM sodium standard, what volume of 1 M NaCl stock should be used? 250 mL 2.5 mL 0.25 mL 0.5 mL None of these 400 mL

asked by vivek on February 24, 2011
13. ## Pre-calc

Find the standard form of the complex number shown below 5(cos7pi/6 + isin7pi/6)

asked by Casandra on February 13, 2012
14. ## Geometry

Given triangle GHI with G(4, -3), H(-4, 2), and I(2, 4), find the perpendicular bisector of line HI in standard form. Please help? Thanks

asked by SkatingDJ on January 13, 2016
15. ## Computer Science

Where can I find college grants and scholarships for men 2 deviations below standard in height?

asked by James on October 4, 2012
16. ## algebra

Write each equation in standard form (set equal to zero). Then solve by factoring. Example: x²-2x=8

asked by Autumn on May 15, 2008
17. ## precalc

find the standard form of the hyperbola, the center and vertices given the foci (0, -+8) and asymptotes at y=4x

asked by nick on December 12, 2017
18. ## Algebra

How do I write the equation of the line in standard form given this info: Perpendicular to 3x - 1y = 4 with an x-intercept of 12 ? Thanks! :)

asked by Nicole on November 21, 2010
19. ## Chemistry

Why is potassium hydrogen phthalate (KHP) a primary standard but sodium hydroxide is not?

asked by chris on March 9, 2011
20. ## algebra

Write an equation in standard form for a line passing through the pair of points. (5,3) and (-3,-8)

asked by mike on May 5, 2009
21. ## Trig.

finnd a possible measure of the angle drawn in standard position that passes through the points (ã2,-ã2)

asked by John on March 11, 2012
22. ## statistics

The data set given below has y^ = 3x - 5 for its regression equation. Find the standard error of estimate. x 3 2 5 8 y 4 1 10 19 A) 1.29 B) 0 C) 2.06 D) 0.17

asked by ericka on March 23, 2012
23. ## math

can you put me on a work sheet page to get practice on writing in standard forms.

asked by queeneka on September 28, 2009
24. ## Standard Form

Find the equation in standard form for the line that satisfies the given requirements. passing through (1, 5) and (2, 6)

asked by jay on January 24, 2017
25. ## pre-algebra 1

Write 6.92 x 10 -8 in standard notation. A. 0.000000692 B. 0.0000000692 C. 0.0000000069 D. 0.00000692 Please help, i have no clue!!!

asked by heather on July 27, 2017
26. ## trig

if the terminal ray of an angle 0 in standard position passes through the point (-1,3),then cos0=

asked by jason on December 5, 2011
27. ## Algebra 1

Write an equation in standard form of the line that passes through the given point and has the given slope m. (5,-1) m=2 I not sure about this one

asked by Jynessa on November 21, 2013
28. ## statistics

I am so lost, please help! Compare the measurements in the study with the standard normal distribution, what does this tell you about the data?

asked by Malaki on July 4, 2010
29. ## statistics

What is the probability that the value of a randomly selected variable from a normal distribution will be more than 3 standard deviations from its mean value?

asked by MrsAwhite on June 10, 2011
30. ## Algebra

Find the equation of the line through the given pair of points in standard form using only integers. 3) (5, 2) and (-1, 6)

asked by Michael on September 14, 2017
31. ## electrochemistry

How do I determine the standard potential for an aluminum half cell? Can someone please explain to me how I do this? like what are the steps? thanks

asked by Kim on January 25, 2012
32. ## statistics

consider shuffling a standard 52 deck of cards and drawing one which is black. what is the probability that the card is a 4,5,or 6

asked by NJABU on October 11, 2016
33. ## chemistry

To make 10 mL of 25 mM sodium standard, what volume of 1 M NaCl stock should be used? 250 mL 2.5 mL 0.25 mL 0.5 mL None of these 400 mL

asked by vivek on February 24, 2011
34. ## world civ.

The standard of living for Anglo-Americans is: low medium average high

asked by Mclovin on September 30, 2014
35. ## Econ

How do you think a nation’s output should be distributed according to income or according to some other standard (such as basic human need)? EXPLAIN

asked by ASH on January 25, 2016
36. ## Science

Why do you think the national weather service has standard conditions for measuring air temperature?

asked by Alejandro on January 27, 2014
37. ## SOP

how to draft a sample standard operating procedure (SOP) for guard behavior?

asked by Bridgett on October 27, 2008
38. ## precalculus

how do i change this into a standard ellipse equation 2x^2 + y^2= 3 , like i know i divide both side by 16 and get (2/3)x^2 +y^2 / 3= 1 but i don't know what to do with that 2/3 in front of the x

asked by v on December 4, 2012
39. ## math

find the probability of choosing a queen or a diamond from a standard deck of 52 cards

asked by Anonymous on July 22, 2016
40. ## Chemistry

Calculate ΔGo (in J) for 2 moles of electron(s) in each half-reaction and a standard potential of 0.57 V.

asked by JUNDY on April 12, 2015
41. ## Algebra 1

Write an equation in standard form of the line that passes through the given points (-1,2) (5,4) I not sure about this one can someone show me how to do it?

asked by Jynessa on November 21, 2013
42. ## math

write in standard form using numbers - Two thousand twelve ten-thousandths?

asked by candy on September 18, 2010
43. ## math

How many number of standard bed fit in an area of 15625 square meters

asked by wert on October 19, 2017
44. ## algebra

A standard die is rolled 10 times, with the outcomes {2, 4, 1, 3, 4, 2, 5, 2, 5, 1} (in this order). You can conclude _____.

asked by Anonymous on March 8, 2011
45. ## Chemistry

Calculate Keq for 2 moles of electron(s) in each half-reaction and a standard potential of 0.55 V.

asked by JUNDY on April 12, 2015
46. ## algebra

how to convert to standard form by completing the square on x and y. 9x^2+4y^2-72x+16y+124=0

asked by Denise on April 26, 2015
47. ## Algebra 1

Write an equation in standard form of the line that passes through the given point and has the given slope m. (4,3), m= 7 I got 7x-y=25

asked by Jynessa on November 21, 2013
48. ## English

Standard time was adopted (in the United States) (in 1884.) prepositional phrases

asked by Anonymous on February 27, 2014
49. ## chemistry

Discuss the spontaneity of an electrochemical reaction in terms of its standard emf (E¨¬cell)

asked by Jin on July 22, 2010
50. ## Math

Give the standard "f(x)" definition of the function. Subtract one and then take the absolute value My answer : f(x)= |x|-1 is it correct?

asked by Anonymous on June 24, 2014
51. ## math

two standard fair 6 sided dice are rolled. What is the probability that their values will differ by exactly two

asked by larry on January 3, 2016
52. ## trig

Write the following equation in standard form and identify the type of conic: 9y^2 - 4x^2 + 8x + 18y + 41 = 0

asked by James on June 14, 2010
53. ## Chemistry

Calculate the standard potential, E^o, for this reaction from its equilibrium constant at 298K. X(s)+Y^2+(aq)= X^2+(aq)+Y(s) K=8.68E6 E^o=??V

asked by Help on April 17, 2013
54. ## math (statistics)

For a skewed distribution, what is the approximate percentage of data values that are within 2 standard deviations

asked by Luke on June 22, 2011
55. ## College Algebra.

Find the equation in standard form of the ellipse, given Center (-2,4),vertices (-6,4) and(2,4) foci (-5,4) and (1,4)

asked by Nicki on December 17, 2009
56. ## Precalc

Find the standard form of the equation of the hyperbola with the given characteristics. foci: (±4, 0) asymptotes: y= +/- 3x

asked by lllll on December 4, 2010
57. ## Math

rationalize the denominator. Simplify. write final answers is standard form (a+bi). (4-5i)/(2-7i)

asked by James on March 24, 2011
58. ## statistics

for a standard normal curve, find the z-score that separates the bottom 30% from the top 70%

asked by kay on November 5, 2008
59. ## Chemistry

Write the standard line notation for each cell below. Mn2+ + 2 e- --> Mn E = -1.18 V Fe3+ + 3 e- --> Fe E = -0.036 V

asked by Anonymous on March 7, 2012
60. ## health

How do you adopt a major HMIS standard? this is the last question in my essay and i can't seem to find the answer to it.

asked by Anonymous on August 24, 2011
61. ## Algebra

What is the standard form of the equation of the line that passes through the point (-1, 2) and has a slope of -5? A. x - 5y = -3 B. x - 20y = -5 C.5x + y = -3 D. 5x - y = 3

asked by yara on November 23, 2018
62. ## Exp. Growth + Decay (HELP ME PLEASE!)

1. Suppose you invest \$1,000 in a CD that is compounded continuosly at the rate of 5% annually. What is the value of this investment after one year? two years? five years? A=1000(e^(.5x1)) = 1648.72 A=1000(e^(.5x2)) = 2718.28 A=1000(e^(.5x5)) = 12182.49 2.

asked by Chopsticks on March 1, 2009
63. ## Math

8 Elizabeth recorded the length in centimeters of the pinky fingers of 10 students in her math class. The results are shown below. What is the mean absolute deviation for length of a pinky finger? 6.1, 5.4, 5.8, 6.3, 6.2, 5.9, 6.5, 5.2, 4.9, 5.5

asked by Anonymous on March 28, 2016
64. ## Chem

An electrochemical cell based on the decomposition of H2O2 can be constructed based on the half-reactions in the table below. Half-Reaction | Standard Reduction Potential, E° H2O2+ 2e- => 2 OH- | 0.88 V O2+ 2 H2O + 2e- => H2O + 2 OH- | -0.15 V (d)

asked by Jess on April 23, 2013
65. ## statistics

Construct a 95% confidence interval for the population mean. 5. Airfare A random sample of airfare prices (in dollars) for a one-way ticket airfare between two cities MN. Key: 21|1=211 21 | 1 2 22 | 1 1 1 2 3 5 7 8 23 | 2 3 4 7 7 8 9 9 24 | 2 3 4 8 8 25 |

asked by anna on February 23, 2014
66. ## math

with the world population just over 7,000,000,000 people, prove that in less than a month one vampire could have the ability to infect the entire planet if they bit only two each day

asked by dondon on November 6, 2015
67. ## statistics

Construct a 95% confidence interval for the population mean. 5. Airfare A random sample of airfare prices (in dollars) for a one-way ticket airfare between two cities MN. Key: 21|1=211 21 | 1 2 22 | 1 1 1 2 3 5 7 8 23 | 2 3 4 7 7 8 9 9 24 | 2 3 4 8 8 25 |

asked by anna on February 23, 2014
68. ## check geo

since the 1970s european government have tried to limit: A)immigration of guest workers b)growth of service industries C)economic growth D)population growth my choice is a

asked by henry on August 24, 2009
69. ## Science

[I need help finding the missing words] An increase in population could result from increased birth rate, increased _____________, or immigration. Increased life span.

asked by Mack on March 18, 2007
70. ## statistics

1. Test the Nation on CBC:“Test the Nation” was the biggest survey ever conducted to see just how smart Canadians are. In this live two-hour special, 1.5 million Canadians participated in a real-time interactive IQ test. Viewers took the test in the

asked by dave on November 22, 2010
71. ## Social studies

How was the agricultural revolution related to the Industrial Revolution? A. Both revolutions occurred because of steam-powered machinery. B. The Industrial Revolution led to an increased demand for food. C. Both revolutions led to the need for more

72. ## statistics

• Linear Regression In the babies.dta full dataset, generate a covariate called painind defined as 1 if the infant experienced severe pain upon receiving the shot (pain0 = 7) and as 0 otherwise. In Stata, you can use the commands: generate painind = 0

asked by jhikjhak on January 15, 2013
73. ## Chemistry*Dr.Bob

I keep finding all sorts of different enthalpy of vaporizations for bromine. I used: 254.66 So factoring 254.66/2 into my equation below i ended up with a lattice energy of -863.33. Can you confirm this?

asked by Crystal on February 2, 2011
74. ## Statistics

Data Information: Wage Income Statistics: Men VS Women Wage gap, by description, is the difference in salary among two groups of people. The description is associated with the practice of paying one gender more than the other. For many years there has been

asked by Trey on April 23, 2011
75. ## Enviro Science

28. Good experiments have 2 key characteristics; they are a. an experimental group and a confirmed hypothesis b. analysis of the control group and an accurate prediction of the outcome c. conducting the actual experiment and reporting the results d.

asked by mysterychicken on April 25, 2012

Help please. Am doing a past exam paper and I hit a road block with this question: Chloride in a brine solution is determined by a precipitation titration. A 10.00 mL aliquot of the solution is titrated with 15.00mL of standard 0.1182 M AgNO3 solution. The

asked by Bell on December 6, 2016
77. ## Economics

The chapter states that the elderly population in the United States is growing more rapidly than the total population. In particular, the number of workers is rising slowly, while the number of retirees is rising quickly. Concerned about the future of

asked by Mariah on November 17, 2006
78. ## Operations management

Tax Preparers Inc. works 250 days per year. The company uses adding machine tape at a rate of eight rolls per day. Usage is believed to be normally distributed with a standard deviation of three rolls during lead time. The cost of ordering the tape is \$10

asked by Patrice on March 1, 2012
79. ## economics

what happens to the united states economy when the gold standard was discontinued? Since this is not my area of expertise, I searched Google under the key words "gold standard economy discontinue" to get these possible sources:

asked by lauren on March 31, 2007
80. ## Math

decide how many times out of 20 tosses you would expect heads to appear and how many times you would expect tails to appear and calculate its deviation.

asked by April on September 4, 2009
81. ## statistics

What is wrong with the statement: It is believed that the proportion of Middle School teachers who leave the profession within 5 years is different from the proportion of High School teachers who leave the profession within 5 years. Test with a level of

asked by Terri on April 14, 2014
82. ## statistics

A bank manager has been presented with a new brochure that was designed to be more effective in attracting current customers to a personal financial counseling session that would include an analysis of additional baking services that could be advantageous

asked by Vannessa on August 4, 2009
83. ## More Calc

There is a ditch that is 18 feet deep at its deepest point. A rock is dropped from the rim above the deepest point. a. Write the height of the rock as a function of t in seconds. b. How long will it take for the rock to hit the ditch floor. We want a

asked by Tezuka on October 7, 2006
84. ## MATH

a. Write an equation compared to the equation of the standard parabola that satisfies the description of each parabola. 1. A parabola whose vertex is (0, -3) 2. A parabola whose vertex is (5, 1) 3. A parabola that opens down and is compressed vertically by

asked by NAMELESS on December 31, 2018
85. ## Science

Hey guys! If you could help me with a few of these question (they are fill in the blanks), that would be much appreciated. 1. Fertilizers and pesticides pplied to farm fields in Pennsylvania have made their way down into the Chesapeake Bay in Maryland.

asked by Kristi on April 8, 2014
86. ## math

Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of \$36,000 and a standards deviation of \$6000. What is the cutoff salary for teachers in the bottom 10%? Answer choice: a. \$28,320 b. \$43,680

asked by nicole on April 16, 2010
87. ## Calc 2

Differential equations. There are gophers in a very large vacant lot. The original population is 30 Gophers. After 2 months there are 38. When will there be 45 gophers? round answer to nearest tenth of a month

asked by Scott on July 9, 2010
88. ## Biostats

What statistical method(s) a researcher can use to determine if the mean body mass index of the population is the same for three groups of subjects (group i=diet restriction; group 2=exercise; group 3=none).

asked by Mary on December 4, 2012
89. ## biostat

What statistical method(s) a researcher can use to determine if the mean body mass index of the population is the same for three groups of subjects (group i=diet restriction; group 2=exercise; group 3=none).

asked by nkem on August 17, 2013
90. ## writing

When citing statistics from a web page in your speech you need to provide which of the following: ALL The date and source of the statistic What population(s) the statistic represents The author responsible for the statistic or quotation

asked by Anonymous on May 10, 2012
91. ## Operations Management

Fresh Sub hires three workers during the peak hours. When customers arrive, one worker is dedicated to order taking and preparing the bread and the meat; then the customer is passed to the second worker, who asks the customer about the vegetable selection

asked by Nick on September 13, 2011
92. ## Chemistry

The spectrophometer was used to measure the absorbance of each of a series of [FeSa]+ solutions. A standard curve was construnceted by plotting the absorbance vs. concentration (M). The slope and y-intercept were found to be 1496 M-1 and .003,

asked by Erin on April 2, 2017
93. ## science(chem)

If I have a graph of concentration in Absorbance at 400nm vs [micromolar]of para-nitrophenol The slope would be the extinction coefficient. (y=mx) if forced through 0 The problem is what is y? I know y is the absorbance but it's given on a paper i have as,

asked by ~christina~ on October 10, 2008
94. ## social studies

What was one reason that Europeans offered for their imperial policies? A. the belief that they had a superior culture and religion B. the desire to learn new technology from other societies C. the intention to introduce industrialization into the colonies

asked by I'm not funny..... on November 26, 2018
95. ## biology

A devastating tsunami wipes out most of the population of a frog species that lives on just one tropical island. What is the most likely outcome of this event? A) frequency-dependent selection B)inbreeding depression C)rapid adaptive evolution D)purging of

asked by Alex on February 3, 2017
96. ## Geogrpahy

The government of japan has responded to its aging population by A)Encouraging immigration*** B) reduced marriage rates in underdeveloped countries C)Savings in health care cost of more than twice the investment D) A 50 percent reduction the crude birth

97. ## Science

Which physical factors MOST influence the Antarctic ecosystem? A) climate, rain, erosion B) plants, wind, and air pressure C) weather, ice, and ocean currents **** D) salinity of water, polar bear population, and snow

98. ## statistics

Suppose 1,600 of 2,000 registered voters sampled said they planned to vote for the Independent candidate for president. Using the 0.95 degree of confidence, what is the interval estimate for the population proportion (to the nearest tenth of a percent)?

asked by Eric on February 2, 2013
99. ## ss

In which country would you MOST expect to find state-controlled industry, the greatest amount of restrictions on private business ownership, and the majority of the population working for the government? A) Brazil B) Canada C) Cuba D) Mexico idk this can

asked by Katie on May 23, 2017
100. ## AP Biology

Which of these characteristics are typical of a r-selected population? a. occurence in variable environments b. high intrinsic rate of growth c. onset of reproduction at an early age d. extensive parental cae of offspring e. occurrence in open habitats

asked by Anonymous1 on December 14, 2008