# 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 96
1. ## criminal

What steps can local police departments take in order to implement a policy standard for dealing with illegal immigrants?

asked by patiance on November 15, 2013
2. ## stat

Find the area under the standard normal curve to the left of z = 1.88, P(z < 1.88). (Give your answer correct to four decimal places.)

asked by janet on July 7, 2012
3. ## math

Find an equation in standard form for the hyperbola that satisfies the given conditions. Center at​ (0,0) a=4​, e=2​, horizontal focal axis

asked by Sam on February 14, 2019
4. ## physics

formulation of hypothesis for the prepation of a standard solution of oxalic acid with a concentration of 0.05mol.dm3. very desperate

asked by anonymous on March 1, 2011
5. ## Math

There are 4 jacks in a standard deck of 52 playing cards. If Patricia selects a card at random, what is the probability that it will be a jack?

asked by Kayla on January 14, 2019
6. ## Probability

Find the indicated probability given that Z is a random variable with a standard normal distribution. (Round your answer to four decimal places.) P(0 ≤ Z ≤ 0.33)

asked by eb on March 24, 2019
7. ## Pre Algebra

I have to design new dice for a board game. I have to use two standard cubes each with six faces and number then in such a way the the probability of rolling the numbers 1-12 are the same

asked by SAm on February 11, 2013
8. ## calculation

Figure 1 represents the first 6 inches of a standard scale, or ruler. What is the distance represented between the lines indicated by the number 1 arrow?

asked by Anonymous on October 4, 2011
9. ## Chemistry

Which pair of ions will be most likely to react at standard state conditions? 1. a) MnO4- and Sn2+ 2. b) Zn2+ and Cl- 3. c) I- and Cu 4. d) Fe3+ and Cu2+

asked by Jake on May 15, 2012

Power Standard Form 10^1 10 10^2 100 10^3 1000 10^4 10000 10^5 100000 Write a rule for the number pattern.

asked by Deanne on February 27, 2013

Power Standard Form 10^1 10 10^2 100 10^3 1000 10^4 10000 10^5 100000 Write a rule for the number pattern.

asked by Deanne on February 27, 2013
12. ## algebra 2

Identify the form of the equation (standard, vertex, intercept), tell if it opens up or down and give the axis of symmetry. y=-4x^2+3x+-6 Walk me through this please?

asked by jamie on March 25, 2014
13. ## math (Urgent)

What is the angle (in standard position - i.e. measured counterclockwise from the positive x-axis) formed by a line from the origin to point (1,-2)? Please help and Thank you

asked by Anonymous on January 31, 2012
14. ## Math

What is the angle (in standard position - i.e. measured counterclockwise from the positive x-axis) formed by a line from the origin to point (1,-2)? Please help and Thank you

asked by Anonymous on January 31, 2012
15. ## precalculus

can you check my work I really do not understand. Find the standard form of the equation of the parabola with focus(8,-2) and directrix x=4. answer= (y+2)^2=-16(x-12/8)

asked by Anonymous on December 12, 2016
16. ## Chemistry

This is a conversion question. 2.78mg to ___________ kg. I've tried the standard formula - ex (2.5 m) (1000m/1m)=2500mm - but it just gives me 2.78e-6. Please help it's driving me crazy.

asked by Victoria on January 26, 2017
17. ## maths

Calculate the square meters of 45 rolls of fabric each containing 125 yards in length, the width is a standard 140cm

asked by zoleka on February 6, 2017
18. ## algebra

Katie is finding the standard form of the equations y = x2 + 6x + 4. What mistake did she make in her work? Show the correct answer.

asked by rattler on March 11, 2010
19. ## Chemistry

calculate the standard free-energy change for the synthesis of hydrazine from nitrogen and hydrogen. N2(g) + H2(g) right arrow N2H4(l)

asked by Kenneth on March 7, 2013
20. ## 3mts

Can someone please let me know what these mean; 3 MTS - C, F and K and this one too 2 L in a SP of G Please and thank you so much for your help:) 3 major temperature scales - celsius, fahrenheit and kelvin 2 lenses in a standard pair of Glasses

asked by Patrick on July 10, 2006
21. ## trig

Find the values of the six trigonometric functions of the angle in standard position with the terminal side passing through the point P(-4, 3).

asked by kp on November 28, 2010
22. ## One for drwls

Thank you for answering my question. Can you steer me to making a quadratic from 1/4(x+3)^2-4 Then I can get the intercepts. Thanks Just multiply it out to put it in the standard form, ax^2 + b^2 + c (1/4)(x+3)^2-4 = (1/4)(x^2 + 6x + 9) -4 = (1/4)x^2 +

asked by charlie on March 21, 2007
23. ## math check

Find the area under the standard normal curve between -1.32 and the mean, P(-1.32 < z < 0.00). (Give your answer correct to four decimal places.) 0.0968

asked by Nora 62 on June 2, 2013
24. ## Math

How do I unscramble the place value write the number in standard form 3thousands+4ones+8hundreds+5ten thousand

asked by Trinity on September 25, 2017
25. ## chemistry

What substance is produced at the cathode during the electrolysis of molten calcium bromide, CaBr2? Assume standard conditions.

asked by sam on April 5, 2011
26. ## Pre-calculus

Find the center radius and equation of a circle in standard form given the following conditions: 1. Tangent to 3x+2y=0 at the point (0,0) and passing through (1,-1) and (6,0)

asked by chen on July 2, 2017
27. ## Math

Find the z-scores that bound the middle 55% of the standard normal distribution ____ small value _____ larger value

asked by Teresa on May 11, 2013
28. ## eigenvalues/eigenvectors

For the standard matrix { 1 -2 0} {-2 -1 1} {0 0 1} I found the eigenvalues to be -1, and +/- 5^1/2 I am having problems finding the eigenvectors of the root 5 values. Can someone set me straight?? Thanks

asked by tracy on March 7, 2007
29. ## hazard bctcs

According to Chebychev's theorem, what percentage of a distribution will be within k = 3.7 standard deviations of the mean? (Give your answer correct to one decimal place.)

asked by haley on May 22, 2013
30. ## math

circle x^2+y^2-6x+12y+33=0 1. transform equation to standard form 2. graph 3. label centers 4. mark radius of each

asked by Anonymous on December 8, 2011
31. ## Stat

the teacher wants me to make a survey questions about a sample and get a statistical data from it, how? including variance and standard deveriation. thanks

asked by Omar on December 30, 2008
32. ## maths

4.6x10 26 the 26 is small (the power) this is in meters put it into kilometers give your answer in standard index form

asked by chantelle on April 15, 2012
33. ## science

Explain how could use a spring,a ruler,some standard masses and some graph paper to find the weight of an unknown object.

asked by syed on December 7, 2011
34. ## Precalculus

Evaluate all six trigonometric functions at t, where the given point lies on the terminal side of an angle of t radians in standard position. (40/41, -9/41)

asked by Anonymous on December 5, 2010
35. ## English

I need help starting my standard views essay or they say I say template. Americans today believe that blank I just need a couple of options to start it. Thank you

asked by Niki on September 2, 2018
36. ## California taxes

what is the 2017 California standard deduction for a dependent with \$3,200 of wages and \$400 of interest from a bank account?

asked by Anonymous on November 15, 2018
37. ## Social Studies Grade 6

What are the definition for rural decline, spatial inequality, standard of living, and urbanization. Please help me! Thank you a sixth grader Susie

asked by Susie on November 24, 2014
38. ## precal 2

find the cube roots of the complex numbers -4square root 2(1-i) and write them in both the standard and trigonometric forms.

asked by qui qui on July 31, 2011
39. ## Science

Explain how you could use a spring, a ruler, some standard masses,and some graph paper to find the weight of an unknown object.

asked by Abdullah on October 25, 2018

Which pair of ions will be most likely to react at standard state conditions? a) MnO4- and Sn2+ b) Zn2+ and Cl- c) I- and Cu d) Fe3+ and Cu2+

asked by scilover on May 9, 2013
41. ## Chemistry

Rewrite the following using a thermochemical equation with a deltaH value: a) The standard molar enthalpy of combustion for propane is -2220kJ/ mol.

asked by Han on September 13, 2014
42. ## trig

Find the values of the six trigonometric functions of an angle 0 in standard position whose terminal side passes through point P. P(4, -3)

asked by Anonymous on May 19, 2010
43. ## geometry

Write the standard equation for the circle center (-6,-8), that passes through (0,0). I know that the formula would leave the 1qstr part as (x+6)+(y+8) I'm not sure about the radius when it goes through (0,0)

asked by Steve on May 7, 2016
44. ## chemistry

When combined with cupric ions (aq, 1M) which will produce the largest standard cell voltage? a. ) KMnO4(aq) b. ) MnO2(s) c. ) MnCl2(aq) d. ) Mn(s)

asked by Anonymous on November 23, 2008
45. ## trig

Given that θ is an angle in standard position whose terminal side contains the given point, provide the exact value of the indicated function. (-2, -3) Find sec θ.

asked by tony on June 11, 2013
46. ## physics

A ray of light is incident at an angle of 20degrees to the normal on one face of an equilateral prismm made in glass of refractive index 1.523. Trace the ray of light through the prism and find the total deviation produced.

47. ## math

Reading readiness of preschoolers from an impoverished neighborhood (n=20) was measured using a standardized test. Nationally, the mean on this test for preschoolers is 30.9 with SD=2.08. A) Children below the 30th percentile (in the bottom 30%) are in

asked by Sasha on April 12, 2012
48. ## Language arts

Selection 1: There's good news and bad news about grizzly bears in the American West. The good news? Their numbers have been increasing in recent years. In 1975, grizzlies made the threatened-species list under the federal Endangered Species Act. The bad

asked by Origami Killer on March 27, 2019
49. ## Chemistry

1. Sodium can be extracted by heating naturally occurring salt until it is molten. An electrochemical process is then used to extract the sodium. Cl2 is produced at the anode, and Na is collected at the cathode. A standard reduction potential graph for the

asked by Morgan on October 22, 2014
50. ## Manageral Economics (Economyst Only Please)

Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specifications: Q= a + bP + cM + dPr Where Q is the

asked by John Q on July 4, 2009
51. ## Ecnomics

Wilpen Company, a price-setting firm, produces nearly 80 percent of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the following linear specifications: Q= a + bP + cM + dPr Where Q is the

asked by Christopher on July 3, 2009
52. ## Math

A marketing research firm wishes to determine if the residents of Caldwell, Idaho, would be interested in a new downtown restaurant. The firm selects a simple random sample of 120 phone numbers from the Caldwell phone book and calls each household. Only 62

asked by Kevin on November 9, 2015
53. ## THE AGE OF DISCOVERY TO THE AMERICAN EXPERIMENT

Which of the following best describes the Columbian Exchange that occurred during the Age of Discovery? A. It was a genetic shift due to population interbreeding. B. It was a cultural transformation. C. It was a religious transformation. D. It was an

asked by Anonymous on February 16, 2011
54. ## social studies

Which factor would have the least effect upon the population distribution in Mexico or the United States? 1 infant mortality rate. 2 national debt 3 migration rate 4 birth rate 5 death rate a little hint or help

asked by miss on May 28, 2016
55. ## Social Studies

How many have responded to the cultural diffusion taking place in southwest Asia? A.)most conservative Muslims have embraced it B.) many moderate Muslims have accepted it C.) most Christians have opposed it D.) much of the Jewish population has accepted it

asked by Cheese on December 3, 2018
56. ## Bio

I just did a multiple choice practice test. For the question "A gene pool is..." I was in between C). the genes that are available to a community and D). The sum total of all the genes of all the individuals in the population. The book says D is correct.

asked by Heather K on May 1, 2011
57. ## stastics

Assume that a random sample is used to estimate a population proportion p. Find the margin of error E corresponds to the given statistics and confidence level. 90% confidence, the sample size is 1457, of which 30% are successes.

asked by anonymous on November 16, 2013
58. ## math

Suppose that the mosquito population of the world is 36000000 and that these mosquitoes can be packed into a cubic box with no space wasted. If the average volume of the mosquito is 6mm^3,how long would the edge of the box have to be?

asked by Franklin on August 22, 2016
59. ## math

(6.0 x 10^5) x (3.0 x 10^4)= A. 18 x 10^20 B. 18 x 10^9 C. 1.8 x 10^20 D. 1.8 x 10^10 2. (5 x 10^-2) divided by (2 x 10^3) = A. 2.5 x 10^-5 B. 2.5 x 10^-1 C. 25 x 10^1 D. 25 x 10^2 3. (2.56 x 10^6) times (3.56 x 10^2)= A. 9.1136 x 10^12 B. 91.138 x 10^8 C.

asked by heather on October 8, 2015
60. ## Art Ms. Sue?? Writeacher??

Illuminated letters sent a visual message that communicated the content of the text. Which portion of the fifteenth-century population benefited most from illuminated letters? -the wealthy -the monks -the scholars -the illiterate*** Thank you for your

asked by Amy on May 10, 2015
61. ## History

Map of boston in 1814 As population increased, The borders of Boston A. Remained the same B. Shrunk to include less areas C. Expanded to include more area**** D. Changed shape but retained the same size

asked by Aaliyah on February 29, 2016
62. ## Stats

2) Find the minimum sample size that should be chosen to assure that the proportion estimate p will be within the required margin of error, .06. Use a 95% confidence interval and a population proportion of .7. The critical value for a 95% confidence level

asked by Eric on June 14, 2011
63. ## Statistics

Find the minimum sample size that should be chosen to assure that the proportion estimate p will be within the required margin of error, .06. Use a 95% confidence interval and a population proportion of .7. The critical value for a 95% confidence level is

asked by Eric on June 6, 2011
64. ## ap bio

The number of trophic levels that can be maintained in an ecosystem is limited by: a. a gain in population size b. the loss of potential energy c. the number of individuals in the ecosystem i have chosen a but it is for a grade and i would love some help??

asked by Bekah on August 27, 2011
65. ## math

assume that a sample is used to estimate a population proportion p. find the margin of error E that corresponds to the given statistics and confidence level. 98% confidence, the sample size is 780, of which 40% are successes what does that mean in English?

asked by daniel on July 22, 2012
66. ## Stats -Math

1. We are interested in conducting a study in order to determine what percentage of voters of a state would vote for the incumbent governor. What is the minimum size sample needed to estimate the population proportion with a margin of error of 0.05 or less

asked by Lauren on December 12, 2016
67. ## history

To find new territory for a growing population, the Song rulers A. purchased lands from neighboring peoples. B. colonized underpopulated areas to the southwest. C. sent people to unpopulated regions to the north. D. conquered territories by military force

asked by bob on May 29, 2011
68. ## sociology

Which economist, using exponential growth, predicted that the world population would pass the capacity the planet could support? A. Jean-Baptiste Say B. Roy Forbes Harrod C. Sir John Richard Hicks D. Thomas Robert Malthus ughhh i cant remember who this is

asked by orpheus on December 31, 2013
69. ## which of the following sentences is the symbol

which of the following sentences is the symbol used correctly? A. According to Alan, the survey revealed that population growth increased twenty-one% in 2005. B. Rachel’s rent has gone up to 765\$ a month. C. Jason bought three books & two magazines. D.

asked by which of the following sentences is the symbol on May 2, 2012
70. ## Ss

Which of the following statements was a law Established by the Northwest ordinance A) only territories with a population of at least 60,000 could apply for statehood B) The educational system would be paid for the central government C) anyone who is scape

asked by Joyce vasquez on October 5, 2017
71. ## statistics

Suppose for the same 3000 women, we also measured their weight. Suppose the data were again normally distributed. The average weight is 143 lbs., and the standard deviation is 30 lbs. Suppose the correlation between height and weight is r = +.69. What is

asked by marie on March 1, 2015
72. ## Social Studies

China and India share a distinction regarding their populations. What is it? a. Approximately two-thirds of their populations live in urban areas b. Both populations have grown to more that one billion people c. About 20 percent of their population are

asked by Kaai97 on October 16, 2015
73. ## Ecology

Questions (4-5) You let your neighbor shoot coyotes on your ranch in Arizona. After all the coyotes are gone, you notice that the rabbit population increases dramatically. Along with this you notice that the rabbits have consumed most of the grasses and

asked by Bobby on October 29, 2010
74. ## statistics

A sample from a population with  = 40 and  = 10 has a mean of M = 44. If the sample mean corresponds to a z = 2.00, then how many scores are in the sample? a. n = 100 b. n = 25 c. n = 5 d. n = 4

asked by Lyndyc on January 8, 2014
75. ## Statistics

A sample of n = 9 scores is obtained from a population with ƒÝ = 70 and ƒã = 18. If the sample mean is M = 76, then what is the z-score for the sample mean? a. z = 0.33 b. z = 0.50 c. z = 1.00 d. z = 3.00

asked by Lyndyc on December 9, 2013
76. ## Statistics

When consumers apply for credit, their credit is rated using the FICO score. A bank manager used a random sample of the credit scores of 18 customers and determined the following 95% confidence interval: (613.6, 708.0) If the sample used 45 customers

asked by Katelyn on November 6, 2013
77. ## Accounting urgent

Whistle manufactures referee whistles. At the end of February, Whistle has 2,000 pounds of steel for whistles inventory. Whistle expects to produce and sell 50,000 whistles in March. Each whistle requires a standard quality of .2 lbs of steel. Whistle

asked by Arya Pal on February 12, 2015
78. ## Biology

There is a loud crash in the room behind you and you jump. which part of your nervous system caused that response/ A. somatic nervous system? C. central nervous system D. sympathetic branch E. parasympathetic branch My teacher told me b was wrong so that's

asked by Sherianna on December 5, 2015
79. ## Geography and Society

What kind of map could you use to show information about a city? a. a relief map b. a population density map c. a political boundary map d. a vegetation map e. All of the above***

asked by Kaai97 on February 8, 2016
80. ## statistics

4. Suppose you administered an anxiety test to a large sample of people and obtained normally distributed scores with a mean of 45 and standard deviation of 4. Do not use web-calculator to answer the following questions. Instead, you need to use the Z

asked by Sandra on September 3, 2012
81. ## world history

How did food surpluses change the way of life in early human settlements? A-villages needed to organize governments B-the population decreased C-more hunting and gathering was required D-humans needed fewer tools and possesions my best answer is A is that

asked by Cassandra on August 11, 2017
82. ## Living environment

The process of natural selection is based on the assumption that (1) environmental changes will cause changes in body structures in individuals (2) most changes from generation to generation are the result of mutations (3)part of the population of

asked by SYNC on November 17, 2011
83. ## anatomy

When comparing Tay-Sachs disease and Duchenne's muscular dystrophy which of the following do both have in common? A.they both involve malfunction of the nervous system B.they both involve mutations in which fat replaces normal tissue C.they both are

asked by unknown on September 30, 2008
84. ## Geography

Austria's population pyramid suggests all of the following, except: A. there are now fewer people in the youngest category than in the older categories. B. many Austrians now live to a very old age.*** C. there has been a decline in birth rates in recent

asked by Anonymous on September 15, 2017
85. ## social studies

Which of these describes a significant advantage possessed by the Union at the beginning of the Civil War? A) a larger free population B) a larger agricultural labor force C) a superior supply of military officers D) a longer coastline for importing and

asked by Anonymous on February 6, 2011
86. ## English

I am doing presentation about Cherokee tribe. will talk about their customs, traditions,holidays, ceremonies etc. Where can I find scholarly articles about this specific population that talks about how to work their family or with them in general .Or just

asked by Noria on December 1, 2016
87. ## MATH

A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4

asked by Salae . on April 11, 2013
88. ## MATH

A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4

asked by Luna on April 9, 2013
89. ## HCA 240

help i need help on this im so confused and don't know what to do please help!!!! propose an improved community-based education/awareness program, targeted at the population most affected by this disease that builds upon the existing program you are

90. ## Algebra 1

Suppose the growth of a population (in thousands) is represented by the expression 32*2.1^x, where x represents the number of years since 2010. Evaluate the expression for the year 2015. Round to the nearest whole number. a. 41 b. 1,307 c. 67 d. 622

asked by Chloe on January 25, 2017
91. ## ~ Math Statistic

A random sample of state gasoline taxes (in cents) is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does your interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4

asked by Evan on April 10, 2013
92. ## Social Studies

Why was the migration of the Aryans to India significant? What do many of the political conflicts in South Asia have in common? Why is the population of South Asia a concern for the region? Please just give me websites beside Wikipedia because I don't

asked by I just need web pages. T.T 0.0... on April 25, 2016
93. ## statistics

A random sample of state gasoline taxes in cents is shown here for 12 states. Use the data to estimate the true population mean gasoline tax with 90% confidence. Does you interval contain the national average of 44.7 cents? 38.4 40.9 67 32.5 51.5 43.4 38

asked by tina on October 5, 2011
94. ## civics

_____ States supported the _____ Plan, which called for a bicameral legislature in which States would be represented according to their population. Slave, Three-Fifths =Larger, Virginia Northern, Connecticut Smaller, New Jersey

asked by Sierra on February 14, 2012
95. ## statistics

n a survey of 634 males ages 18-64, 392 say that they have gone to the dentist in the past year contrast 90% and 95% confidence intervals for the population proportions, interperate the results and compare withsof the confidence intervals

asked by MOE on July 14, 2013
96. ## psychology

Surveys suggest that up to 4% of the U.S. population suffers from generalized anxiety disorder. How are anxiety disorders viewed by various psychological perspectives such as psychodynamic, biological, cognitive, and humanistic? With which perspective do

asked by Katie on November 23, 2010
97. ## Science

As the number of racoons in a foest increases, the availablity of nesting sites limits population growth. This describes which of the following? A. A density-dependent factor. B. A density-independent factor. C. Intraspecific competitaion. D. Both A and C.

asked by Kaled on December 5, 2009
98. ## economics

4. What source of economic growth is reflected in the economy by an increase in productivity without an increase in land, labor, or capital? A. technological progress B. foreign trade C. population growth D. savings and investments

asked by Codey on May 30, 2011
99. ## Science

Could you help me formulate a hypothesis that explains the changes in population of the yellow-headed blacbird. Factors that influence this change are; -Air and Water Quality -Climate Change -Human Activities But what could be the hypothesis. Thank you in

asked by Lauren on February 25, 2008
100. ## Global science

The ajor reason for the dfamatic increase in human population during the last 100 years is ? a)increasing birthrates,B)decreasing birth rates,c)improved daycare for children,d) decreasing death rates

asked by Anonymous on November 1, 2010