(1 point) if y=∑18i=1xi and every xi is i. i.d with a chi-squared distribution with 6 degrees of freedom, find the mgf of y. m(t)= what is the distribution of y? select all that apply. there may be more than one correct answer. a. exponential(λ=54) b. gamma(α=2,β=108) c. gamma(α=54,β=2) d. gamma(α=1,β=1/54) e. chi−squared(df=108) f. exponential(λ=108) g. gamma(α=1,β=1/108) h. chi−squared(df=54) i. none of the above

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step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

x= 149. 24+7=31. 180-31=149

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answer: for each 3 girls there is 2 boys . 3: 2

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step-by-step explanation: