Let x1 and x2 be independent chi-square random variables with r1 and r2 degrees of freedom, respectively. let y1 = (x1/r1)/(x2/r2) and y2 = x2. (a) find the joint pdf of y1 and y2. (b) determine the marginal pdf of y1 and show that y1 has an f distribution. (this is another, but equivalent, way of finding the pdf of f.)

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step-by-step explanation:

answer: he is 272195

step-by-step explanation: all you have to do is multiple 3535 and 77 and it equals 272195

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33

what are the