# Which value of r represents data with a strong negative linear correlation between two variables? 1) -1.07 2) -0.89 3) -0.14 4) 0.92

26,129 questions, page 127
1. ## algebra

using product rule, power rule, negative rule using scientific notation. 5.4*10^6/2.7*10^4=5.4/2.7*10^6/10^4=2*10^2

asked by plz help on May 12, 2012
2. ## linguistics

Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?

asked by Monique on March 26, 2011
3. ## linguistics

Describe what contrastive analysis is and what transfer is(both positive transfer and negative transfer)?

asked by Monique on March 26, 2011
4. ## ethnics help

The instructor states the following that i have to cover these points on a)characteristics of orientalism b)how orientalism has involved into prejudice and discrimation c)How to promote tolerance and reduce prejudice in our cities. and the syllabus states

asked by minemine on November 2, 2006
5. ## Math

An airplane, after 1 hour in the air, arrives at a point 350 miles south of its departure point. There was a steady wind of exactly 25 mph from the northwest during the entire flight. Which represents the airplane's average air speed?

asked by Ana on May 5, 2014
6. ## Math

A friend opens a savings account by depositing \$1000. He deposits an additional \$75 into the account each month. a. What is a rule that represents the amount of money in the account as an arithmetic sequence? b. How much money is in the account after 18

asked by Shakira on January 8, 2014
7. ## CALC HARD...

Suppose that 430 ft of fencing is used to enclose a corral in the shape of a rectangle with a semicircle whose diameter is a side of the rectangle. (In the figure below, the blue outline represents the fencing.) Find the dimensions of the corral with

asked by HELP on October 29, 2010
8. ## math

A friend opens a savings account by depositing \$1000. He deposits an additional \$75 into the account each month. a. What is a rule that represents the amount of money in the account as an arithmetic sequence? b. How much money is in the account after 18

asked by Shakira on January 8, 2014
9. ## math

A friend opens a savings account by depositing \$1000. He deposits an additional \$75 into the account each month. a. What is a rule that represents the amount of money in the account as an arithmetic sequence? b. How much money is in the account after 18

asked by Shakira on January 8, 2014
10. ## Math

jody gets paid \$200.00 per week, plus \$100.00 for every oil change she completes. write the equation that shoes the relationship between the number of oil changes and her weekly income. then write the slope of the line that represents the relationship

asked by Anon on December 10, 2014
11. ## math

The community is having a book sale to raise money for a new computer. The library sells each book for \$4.00. complete the table, where b represents the number of books sold. How much money will the library earn if b=44? b 4b 40 160 44 ? 50 200 I don't

asked by jared on March 15, 2013
12. ## Chemistry

a) To make an acid solution, 6.8 x 10-3 mole of a strong acid (6.8 x 10-3 mole H3O+) is dissolved in water to give a 550 mL solution. What is the pH and [OH-] of the solution? b) 150 mL of water is added to 50 mL of the solution produced in question 3.

asked by Anonymous on October 17, 2013

a) To make an acid solution, 6.8 x 10-3 mole of a strong acid (6.8 x 10-3 mole H3O+) is dissolved in water to give a 550 mL solution. What is the pH and [OH-] of the solution? b) 150 mL of water is added to 50 mL of the solution produced in question 3.

asked by Anonymous on October 17, 2013
14. ## Food engineering/biology

Hey Can anyone help me out with this problem. For part a i understand i plot microbial numbers against time on semi log paper to determine D value for the two temperatures. But i'm unsure how to do part b. Alicyclobacillus acidoterrestris is a quite hat

asked by Jennifer on May 23, 2010
15. ## Algebra

Hello again! This is a practice test. I know the answer to it; however, I really want to know HOW to solve it for the real test. Question: Which inequality represents all possible solutions of -6n < -12? The Answer is: n > 2 I just want to know how to

asked by Celia on February 26, 2019
16. ## Math

In the United States workers spend 72% of their gas usage to go to and from work. What fraction represents their non-work travel and gas usage?

asked by Lillie on November 12, 2008
17. ## Mathematics of finance 1

A company has sales of 160000 which represents a 6.5% increase over the previous year. what were the sales over previous year? please elaborate the method and formula

asked by TARAN on February 12, 2017
18. ## Calculus

If h(t) represents the height of an object above ground level at time t and h(t) is given by h(t)=-16t2+11t+1 find the height of the object at the time when the speed is zero.

asked by Melissa on September 13, 2010
19. ## Algebra/Math

Kim poured a 24 ounce container of OJ into 5 cups and poured the same amount of OJ into each cup. Which rational number represents the amount of OJ in each cup? A.) 5/24, B.) 5 or C.) 24/5

asked by Ava on September 29, 2018
20. ## Calculus and vectors

Velocity represents the slope of a displacement function. Suppose an object was moving to the right, then stopped, then continued moving to the right. What would the displacement function look like?

asked by Court on December 16, 2013
21. ## Algebra 2

Which probability matches the probability histogram? Assume that there are 2 trials. X = 2 where X represents the number of successes. . P(success)=0.3 P(success)=0.4 P(success)=0.6 P(success)=0.7

asked by Arianna on September 9, 2016
22. ## Algebra

The first element of a geometric sequence is 1 and the common ratio is 3; determine the smallest 4 digit numeral that represents an element of this geometric sequence

asked by xavier on December 16, 2012
23. ## math

each letter in the following problems represents a different number 0 + 9. letters remain constant witin the problems. can you figue out what number each letter represes? he + me = we

asked by holly on September 17, 2016
24. ## calsulus

if h(t) represents the height of an object above ground level at time t and h(t) is given by h(t)=-16t^2+13t+1 find the height of the object at the time when the speed is Zero. h(t)=?

asked by Jenny on September 14, 2010
25. ## Calculus

If h(t) represents the height of an object above ground level at time t and h(t) is given by h(t) = −16t2 + 96t + 1, find the height of the object at the time when the velocity is zero.

asked by Melissa on September 22, 2010
26. ## math

Martha read 120 pages in her book, which has a total of 200 pages. Which fraction best represents the portion of the book that she has not read?

asked by angelika caylen on April 7, 2014
27. ## Health

Research with animals suggests that compared with adults, adolescents are ________ to the negative effects of alcohol intoxication—such as sedation, hangover, and loss of coordination. A. More sensitive B. Less sensitive C. Not at all sensitive D. None

asked by Noemi on February 11, 2016
28. ## algebra

Find the largest possible integer n such that there exists a non-constant quadratic polynomial f(x) with integer coefficients satisfying f(1)∣f(2),f(2)∣f(3),…f(n−1)∣f(n). Details and assumptions: ~For (possibly negative or zero) integers m and k

asked by flex on May 13, 2013
29. ## Pre-Algebra

Can I have someone check this please? I wouldn't want to do the whole page, then find out I had done them all wrong. :( [Percents of Change] A \$100 digital watch is now \$72 Decrease, 72/100 = negative percent. 100/72.00 = .72 .72 - 1 = 30%? Thanks. 30% is

asked by Dean on October 27, 2009
30. ## Chemistry

calories given off when 85g of water cools from 48C to 23C. Express your answer using two significant figures. I know the answer is 2100 cal, but I just need to know why the answer is a positive value instead of negative, when it is supposed to be cooling

asked by Sam on September 8, 2011
31. ## MATHS

Find the largest possible integer n such that there exists a non-constant quadratic polynomial f(x) with integer coefficients satisfying f(1)∣f(2),f(2)∣f(3),…f(n−1)∣f(n). Details and assumptions For (possibly negative or zero) integers m and k

asked by HELP!! on May 17, 2013
32. ## Physics

It takes 133 J of work to move 3 C of charge from the negative plate to the positive plate of a parallel plate capacitor. What voltage difference exists between the plates? Answer in units of V.

asked by Davie on February 13, 2015
33. ## math

calculate the range, variance, standard deviation, and interquartile range for the data set given {72, 80, 80, 82, 88, 90, 96}

34. ## office finances

what can a computerized spreadsheet do that a paper spreadsheet cant b.keep track of financial data c.recalculate itself after changes my answer is c

asked by susue on December 27, 2013
35. ## Math

calculate the range, variance, standard deviation, and interquartile range for the data set given {72, 80, 80, 82, 88, 90, 96}

asked by Dominick on December 12, 2010
36. ## Calculus

The function f is continuous on the interval [3, 13] with selected values of x and f(x) given in the table below. Use the data in the table to approximate f '(3.5) x 3 4 7 10 13 f(x) 2 8 10 12 22

asked by Jim on April 6, 2018
37. ## Algebra

Solve by using the quadratic formula To get help, you need to give more specific data. Please repost with the specific information. Thanks for asking.

38. ## Math

Is this statement true? The least squares regression line is a unique line for each data set? I would say yes.

asked by John on September 21, 2013
39. ## math

How do you figure out the slope without drawing the graph? I kinda forgot. I have a chart with data, and I need to know the slope please help thank you

asked by Jason on October 3, 2007
40. ## statistics

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29

41. ## nursing

How do decision theory, probability theory, inference, and generalization relate to data analysis?

asked by julie on September 23, 2011
42. ## STATS

7. Calculate b0 and b1 and make an equation of regression line for the set of data given in Table 3 Table 3 x y 1 12 2 15 3 16 5 18 6 21 8 23

asked by Mary on March 30, 2010
43. ## Math

calculate the range, variance, standard deviation, and interquartile range for the data set given {72, 80, 80, 82, 88, 90, 96}

asked by Anonymous on November 1, 2009
44. ## Chemistry

What data do you need to determine whether the following reaction is spontaneous or not? 4Fe(s) + O2(g) ----> 2Fe2O2(s) Would it be temperature, delta H and delta S?

asked by Sharkeisha on August 5, 2015
45. ## research

How do decision theory, probability theory, inference, and generalization relate to data analysis?

asked by Mary on October 19, 2013
46. ## english

just wonderin-is there any sites on interent where i can find data bout autism 2010. i cant find anything anywhere

asked by Anonymous on February 28, 2010
47. ## statistics

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29

asked by karen on August 20, 2010
48. ## math

Summation of indexed data, I added the numbers up and I get -27 find the summation 29x does this mean I multiply the -27 by 29 Thank you

asked by Mary Ann on July 12, 2015

need to draw data sets to find the mean. I know how to use this putting the numbers in order from least to greatest, but how do I draw this?

asked by Joel on September 20, 2007
50. ## Statistics

how can I determine weather to reject or fail to reject the following nul hypothosis: let a= o.01, data: s= 3.1, n=55 and H(0) st dev 2.8 and H(1)< 2.8

asked by Carl on April 19, 2013
51. ## Math

In a class of 28 sixth graders all but one of the students are 12 years old. Which two data measurements are the same for the students ages?

asked by Christian on August 31, 2017
52. ## Finite Math Help Please!!!

Finite Math Help Please!!! Can someone help me ? I am confused about this Problem? Median Quartile 1 (Q1) Quartile 3 (Q3) for boxplot 9 10 11 12 13 14 15 16 17 18 19 20 Data

asked by fred on October 25, 2016
53. ## What would the effect size be?

Based on the data bellow, what would the effect size be? Group one 12 and group two 11. Standard deviation 3.

asked by Penelope on November 17, 2014
54. ## statistics

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29

asked by Stefania on October 3, 2010
55. ## statistics

The test scores for 9 students on the Unit 1 test were 35, 25, 50, 95, 80, 60, 45, 100, and 90. What is the value of the second quartile for this data set?

asked by josh on February 26, 2011
56. ## math !

using the following set of data, calculate the lower quartile, the upper quartile, and the interquartile range.20, 22, 25, 28, 29, 30, 32, 33, 34 ? NEED HELP !

asked by JacqueesWifee on April 11, 2016
57. ## Statistics

Hi, Are market returns (with numbers such as -3.45, 4, 2.456 representing the "returns") ordinal or nominal data? Thanks!

asked by Candice on April 18, 2014
58. ## Math

Remove one value from the following data to make each statement true. 32,45,82,99,15,102,75,15,15,75,2,75 a)The mean is 56.09 How do you know the removed value makes it true?

asked by Sara on June 20, 2014
59. ## Statistics

How is finding the standard deviation a measurement of a data\'s center? my teacher said it measured the center...

asked by Statistics on August 28, 2009
60. ## Statistics

Is is possible for the regression equation to have none of the actual (observed) data points located on the regression line?

asked by Julia on December 2, 2012
61. ## math

if a score is change, will the mean be affected? if a score is added in the data set, will the median be changed?

asked by aristo on November 19, 2018
62. ## Statistics

The least absolute deviation line equation for the data in the table is m = 0.1 x + 2.9 X 1,6,0.5,4,7.5,12,10,11 y 3,2.5,8,1,1.5,9,13,4 What is the sum of the absolute deviations?

asked by BoB on December 12, 2018
63. ## visual basic 6

1)with the aid of illustrative examples, differentiate between Input statement and Read and Data statement.

asked by Thanking you... on June 29, 2009
64. ## stat

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29

asked by jackie on February 6, 2011
65. ## History

Which statement best explains the reason the Americans were never able to capture St. Augustine in Florida. A) A lack of cooperation among commanders led to poor execution.*** B) Poor planning and incompetent leaders led to disastrous outcomes. C) The

asked by Sam on October 31, 2016
66. ## ENGLISH

Which of these events in the plot of Silas Marner best represents the complication in the novel? a.Silas tells Molly he has learned to trust again. b.Godfrey learns that Molly is dead. c.All of Silas's gold is stolen following fifteen years of self-imposed

67. ## Statistics

Records show that 29% of all payments to a mail-order company are submitted aftr the due date. Suppose 50 payments are submitted this week. Let r be a random variable that represents the number of payments that are late. Use the normal approximanition to

asked by Regina Turner on December 5, 2012
68. ## English

As it is too noisy, I can't hear you. ================== In this sentence, what does 'it' refer to?•English - Ms. Sue, Friday, December 25, 2015 at 5:45pm In this kind of construction, "it" represents an understood concept. Wherever the speaker may be is

asked by rfvv on December 25, 2015
69. ## math

A coordinate grid is used on the plan of a new housing development. fibre optic cable is being laid with a micro-tunnelling machine. The cable will link points with coordinates A(-18,12), B(-8,1), C(3,4)and D(15,7)in a run beginning at A and ending at D .

asked by Ted on October 20, 2010
70. ## matrix, linear transformations

Morning, Bit confused: I have been given the following: g(x,y)=(4x,6y) h(x,y)=(x+2y,y) k(x,y)=(y,x) and ive got the following matrix for each of them: g={{4,0},{0,6}} h={{1,2},{0,1}} k={{0,1},{1,0}} So ive been asked to prove the linear transformation

asked by Anon on February 25, 2017
71. ## physics

Two gerbils run in place with a linear speed of 0.60m/s on an exercise wheel that is shaped like a hoop.Find the angular momentum of the system if each gerbil has a mass of 0.22kg and the exercise wheel has a radius of 8.5 cm and a mass of 5.0 g.

asked by Anonymous on December 1, 2010
72. ## physics

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t =

asked by maria on October 24, 2011
73. ## math(trig)

1) What's the linear velocity of a point on the tip of a 6-ft propeller turning at 1200 revolutions per min? 2) A gear is driven by a chain that travels 90m/min. Find the radius of the gear if it makes 50 revolutions per minute.

asked by confused on December 6, 2010
74. ## Intro to linear algebra

For the matrix: [[1,4,2],[2,5,1],[3,6,0]] (This is 3X3) .. find out whether the columns are linearly independent. Is the 3rd column a linear combination of two other columns? In both cases find the coefficients. Please show step-by-step and explain in

asked by Anonymous on October 11, 2017
75. ## physics

The drawing shows two transverse waves traveling on two strings. The linear density of each string is 0.0483 kg/m, and the tension is provided by a 15.0-N block that is hanging from the string. Determine the speed of the wave in part (a) and part (b) of

asked by Anonymous on October 31, 2014
76. ## algebra 1

In 1975, when the United Nations was formed, there were 51 member nations. In 1987, there were 159 member nations. Write an equation that gives the number of nations in the UN, y, in terms of the year, t. Let t=0 correspond to 1945 and assume that

asked by layla on October 24, 2012
77. ## physics

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t =

asked by maria on October 25, 2011

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t =

asked by maria on October 24, 2011
79. ## math

you purchase an suv for \$26,000. A year later the car is worth only \$24,800. If the value of the car continues to depreciate at that rate, a. find the linear equation that determines the value of the car based on the number of years you own it. b. when

asked by jen on March 7, 2010
80. ## physics

A sinusoidal wave on a string is described by the equation y = (0.169 m) sin (0.713 x - 41.9 t), where x and y are in meters and t is in seconds. If the linear mass density of the string is 10.1 g/m ... a) ... the phase of the wave at x = 2.27 cm and t =

asked by maria on October 24, 2011
81. ## chemistry

The Rydberg equation (1/lambda=R/ni^2–R/nf^2) can be treated as a line equation. What is the value of nf as a function of the slope (m) and y-intercept(b)? by GC 1/lambda = R/ni^2–R/nf^2 y = mx + b (standard form) of a linear equation) x = (y-b)/m Let,

asked by bubble on January 15, 2010
82. ## Physics2

"The heat engine uses 1.00x10^-2 mol of a diatomic gas as the working substance. Determine the temperatures at the 3 points." From 1-2, it's an adiabatic process and the constants are (P)(V^(7/5)) or (T)(V^(2/5)). From 2-3, it's an isobaric process with

asked by Summer on February 21, 2013
83. ## physics

is the height of a ball be thrown directly related to the initial velocity? if i were to graph initial velocity as y and height as x,would it be a linear trend?

asked by Anthony on January 29, 2017
84. ## math

A fabric manufacturing company has a fabric that is 36 inches wide. If the company needs 75 sq. yards, how many linear feet does the manufacturing team need to produce? NEED HELP!

asked by Jalyn on November 19, 2014
85. ## Physics

The temperature of a 1 m long aluminum rod is 20° C. If the temperature is increased to 70° C, what is the length of the rod? The coefficient of linear expansion for aluminum is 16 * 10^-6 /(degrees)C Please help I can not get this.

asked by Anonymous on April 25, 2015
86. ## algebra

The equation -5x-3y=2 is a linear equation in standard form. From this equation, answer the following:a. Find the y and x-intercepts b. Write this equation in slope-intercept form.

asked by Keonn'a on September 16, 2018
87. ## Algebra

Create an equation where the left side is a linear function and the right side is a square root function. Make it so that the equation has exactly two solutions.

asked by Joe on January 2, 2017
88. ## Supply/Math

The suppliers will supply 3,300 units if the price is \$350.00 and 3,800 units if the price becomes \$410.00. Then the linear supply equation is p = ? s + ? .

asked by Melissa on January 30, 2011
89. ## Geometry

∠ABC and ∠ABD are a linear pair. Prove that m∠ABC + m∠ABD = 180°. Write a paragraph proof...I don't know how to write this out

90. ## math

Find the median, the first quartile, the third quartile, the minimum, the maximum, and the rangeof the data; 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58

asked by Victoria on May 20, 2008
91. ## Math

I want to know that if we have a set of data and we have to conclude if it is Da Vinci Theorom how do we know if it is or not . what do we need to de in order to conclude thankyou

asked by anna on November 30, 2007
92. ## statistics

find the sample variance s2 for the following sample data. Round to the nearest hundred x: 23 17 12 35 29

asked by Anonymous on July 22, 2010
93. ## Statistics

Consider the following data set: 3, 4, 6, 7, 9, 9, 11. Identify a number you could add to the set to keep the mean larger than the median.

asked by Amethyst on August 31, 2017
94. ## biochemistry

2. Given the following data, calculate the Keq for the denaturation reaction of β-lactoglobin at 25 oC. Δ Ho = -88 kJ/mol, Δ So = 0.3 kJ/mol

asked by Blake on February 6, 2013
95. ## statistics

when the mean is slightly larger than the median does that mean the data is slightly skewed to the left, the right, or neihter?

asked by statistics on July 17, 2009
96. ## Science

The pH of a 0.10-M solution of caffeine is 11.16. Determine Kb for caffeine from these data: C8H10N4O2(aq)+H2O(l) ⇌ C8H10N4O2H+(aq)+OH−(aq)

asked by Anonymous on March 11, 2016
97. ## Math

what number could be included in the data set 9,12,17,15,13, so that the MEDIAN of the numbers in the set result in 14?

asked by die on August 17, 2018
98. ## Calculus

I am working on a regression model , if my residuals don't exceed 0.6 does that mean this model is OK for my data?,

asked by Michelle♡♡ on November 26, 2016
99. ## Chemistry

From the following data, calculate ΔH° for the reaction O3(g) +NO(g)----->O2(g)+NO2 (g) Compound ΔH°f (kJ/mol) O3 142.7 NO 90.3 O2 0 NO2 33.2

asked by Onye on March 4, 2018
100. ## algebra

Describe the measures of central tendency and measures of dispersion for the following data set: A = {8,1,2,9,3,2,8,1,2}

asked by Sharon on May 6, 2008