Mathematics, 24.12.2019 19:31 MJKjmkp1
(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
Answers: 2
Mathematics, 21.06.2019 18:20
Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a. x2 − 4x − 7 = 0b. 4r2 + 11r − 3 = 0c. 3m2 + 7 = 0d. t2 + 2t + 1 = 0
Answers: 1
Mathematics, 21.06.2019 19:30
Me max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.
Answers: 2
(1 point) if y=∑18i=1xi and every xi is i. i.d with a chi-squared distribution with 6 degrees of fre...
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