Pre-Calculus

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Suppose x has a distribution with a mean of 80 and a
Suppose x has a distribution with a mean of 80 and a standard deviation of 9. Random samples of size n = 36 are drawn. (a) Describe the x bar distribution. x bar has a normal distribution. x bar has a… read more
Neo
11,783 satisfied customers
1. Use the polynomial approximations to the function sin x
1. Use the polynomial approximations to the function sin x derived in class to find a polynomial approximation to sin x on the interval [-1, 1] so that the error at any point is less than 0:01. (a) Wr… read more
Ryan
Bachelor's Degree
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Just need answers for my homework as I've missed some work. … read more
akch2002
Master's Degree
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Hi Ryan. You Think you can you explain what do I have to do
Hi Ryan. You Think you can you explain what do I have to do on QR-5 and QR-6? I do not understand the questions. Please… read more
Ryan
Bachelor's Degree
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Quadratic Regression (QR) Data: On a particular day in April,
Quadratic Regression (QR) Data: On a particular day in April, the outdoor temperature was recorded at 8 times of the day, and the following table was compiled. Time of day (hour) x Temperature (degree… read more
Ryan
Bachelor's Degree
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1. Convert 2π/3 radians into degrees. 2. Determine the
1. Convert 2π/3 radians into degrees. 2. Determine the length of a shadow cast by a flagpole that is 15 feet high when the sun has an angle of elevation of 28˚ Round your answer to the nearest foot. 3… read more
akch2002
Master's Degree
3,108 satisfied customers
Quadratic Regression (QR) Data: On a particular day in April,
Quadratic Regression (QR) Data: On a particular day in April, the outdoor temperature was recorded at 8 times of the day, and the following table was compiled. Time of day (hour) x Temperature (degree… read more
Ryan
Bachelor's Degree
4,665 satisfied customers
a math/eng question im not sure about. (a)Evaluatethe
a math/eng question im not sure about. (a)Evaluatethe scalar line integral of the vector field F1 (x, y, z)= 2y i +3x j +4z k around the closed circular path C of radius1 centred at the point (1, 0, 2… read more
akch2002
Master's Degree
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1. Find the complete exact solution of sin x = −√3/2. 2. Solve
1. Find the complete exact solution of sin x = −√3/2. 2. Solve cos 2x – 3sin x cos 2x = 0 for the principal value(s) to two decimal places. 3. Solve tan² x + tan x – 1 = 0 for the principal value(s) t… read more
Stevewh
Teacher
Bachelor's Degree
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ASSIGNMENT 7 MA240 College Algebra Directions: Be sure
ASSIGNMENT 7 MA240 College Algebra Directions: Be sure to make an electronic copy of your answer before submitting it to Ashworth College for grading. Unless otherwise stated, answer in complete sente… read more
Ryan
Bachelor's Degree
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50 companies are expected to have 3 employee off the job
50 companies are expected to have 3 employee off the job accidents per yer: what is the prob. of no off job accidents in 1 year period? prob of atleast 2 in 1 year period? what is the prob of no off t… read more
Trigeoscal
College Math Professor
Master's Degree
960 satisfied customers
(probability) I have doc attachment it will be more better
Attachment: 2012-12-24_135028_probability.docx (probability) I have doc attachment it will be more better than this Q1) The joint p.d.f of the r.v.'s X and Y is given by: fX,Y (x,y) = xe-(x+y) , x>… read more
Math-John
PhD in Statistics
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Find the center of mass of the ball of radius ax^2+y^2+z^2
Find the center of mass of the ball of radius ax^2+y^2+z^2 <,=a^2 if the density is numerically equal to z… read more
Martin
Master's Degree
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For John Only Recall x~ exp(θ) means p(x|θ)=θe^θx Suppose
For John Only Recall x~ exp(θ) means p(x|θ)=θe^θx Suppose β~ exp(λ)and λ~ exp(1). Specify a Gibbs sampler to generate a sample from p(λ,β). From this sample how would you get a sample from p(β).… read more
Math-John
PhD in Statistics
1,322 satisfied customers
x is a variable with sampling density p(x|a)=a+x/a+0.5 for
x is a variable with sampling density p(x|a)=a+x/a+0.5 for a<=0 and x<=1 . (a)Find the sampling density for y = x/3. (b) For prior on a given by p(a)=a+0.5 for 0<=a<=1 i) find up to a mult… read more
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
Suppose your new Ostrich brand computer comes with a two year
Suppose your new Ostrich brand computer comes with a two year warranty. You do some research and find that the lifespan of these computers is distributed normally with a mean life of 32 months and a s… read more
Osbert12
Master's Degree
2,468 satisfied customers
Find the critical points of f(x,y) = exp(6x - 3x^2 + 2y - y^2),
Find the critical points of f(x,y) = exp(6x - 3x^2 + 2y - y^2), then use the second derivative test to determine whether they are max,min,saddle points… read more
David
Post-Doctoral Degree
2,112 satisfied customers
Thanks for that can you please help with this one too: A = 3 -4 2 3 -4 3 2 -2 3 Find a matrix P such that P^-1 AP = x where x is a diagonal matrix… read more
David
Post-Doctoral Degree
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