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What is the distance between #(5 ,( pi)/4 )# and #(4 , ( pi )/6 )#?

Question #f6c62

What is the mean and variance of a random variable with the following probability density function?: #f(x) = 3x^2 if 1 < x < 1#; 0 otherwise

If you multiply each entry of a set by 3 and added 1, how would the mean and standard deviation change?

3 balls are drawn from a jar that contains 5 white balls and 3 black balls. What is the probability that all 3 balls are same in color if there is no replacement?

What is the standard error of an estimator?

If two variables have a negative correlation, can they have a positive covariance?

How can a tstatistic be used to determine statistical significance?

Can you determine the coefficient of determination from the correlation coefficient?

If you roll a fair die three times, what is the probability that you don't roll any 5's?

What is the variance of the following numbers?: {3,5,2,2,4,7,8,5,7,12,6,4,}

What is the variance of a probability distribution function of the form: #f(x)=ke^(2x)#?

Assume that 10% of published books break even, 20% lose $10,000, 30% lose $20,000, and 40% net $10,000. What is the expected value of a random book?

How does the normal distribution differ form the Poisson distribution?

What do the coefficients of a linear regression tell you?

If the covariance of two variables is 0, are they necessarily independent?

In terms of the parameters of the probability mass function, what is the formula for the standard deviation of a Poisson distribution?

What is the variance of z=2x+3y, in terms of the variances of x and y?

For binomial distribution X, with n = 7 and p = 0.6, what is P(X>3)?

Why does the standard normal distribution have a kurtosis of 0?

What is Bayes' rule?

How do you find the exact value of #csc180#?

Is a binomial distribution supposed to be symmetrical?

Question #6376d

Question #ecb31

Question #26b22

How do you factor #2x^2  3xy  2y^2#?

How do you use the double angle or half angle formulas to express sin x/2 in terms of cos x?

Question #54096

How do you find the exact values of cot, csc and sec for 30 degrees?

How do you find the 6 trigonometric functions for 3pi/2?

How do you find the compliment of (pi/7) in an angle of radians?

A triangle that is 3 units high, 4 units long, and has a hypotenuse of 5 units, how do you find the angles?

How do you find the domain & range for #f(x)=sqrt(tan(2x+π))#?

How do you graph #f(x)=sin(x+pi/6)#?

If the triangle has an angle of 30 degrees, what is the Hypotonese And The Opposite?

James bond is looking at the top of a tower, at a distance of 133 m. He is 1.6 m. tall and has to look about 25 degrees above eye level. How do you find the height of the tower?

How do I solve #3 sin x+2 tan x=0# for #0°<x<360°# ?

How do you solve #10cos^2x  5 = 1#?

Question #e49ee

How do you find the 6 trigonometric functions for pi/2?

Question #e84c9

How do you find the 6 trigonometric functions for 5pi/3?

In triangle EFD, the measure of angle D is 37.9, side d is 27 ft, side f 20ft. How do you find the measure of angle F?

Question #064b4

Question #67bb2

How do I evaluate cos(pi/5) without using a calculator?

How do you solve #3sin^(2)x  sinxcosx  4cos^(2)x = 0# from [pi, pi]?

What is the sec^2 (pi/3)?

How do you find the exact value of sin(arctan(2))?

Given tan x tan y = p and cos(x+y)=q .Show that sin x sin y =(pq)/(1q) and cos(xy)= (q(1+p))/(1p) ?

How do you find #cos x= 1/2#?

Question #80edb

When working in decimal radians, how do you find x given #65^0#
= #sin^1 x# ?
?

Question #03cdf

What information does an ogive provide?

What is the purpose of blocking in some experiments?

How do you evaluate #arcsin (sin (3pi/2))#?

How do you verify #sec(x+y)= (secx secy)/(1tanxtany)#?

How do you simplify #1/csc^2 x + (1/tan x)(cot x) + cos^2 x#?

What is a joint probability in a twoway table?

What information is gleaned if we reject the null hypothesis for the test of the slope of the least squres regression line?

Question #fd2d3

Question #5701b

What are independent trials, and how do they relate to the definition of probability?

Question #b9a4f

What are 5 sampling techniques, and what are the advantages and disadvantages of each?

How do you distinguish between whether should use a permutation and a combination for a given problem?