5. 7,3,9,5,4 The values of a variable X are: Compute the following: a) x ΣΧ) c)...
9, X = 3, 4, 5, and 7; compute Σ, (ΣΧ), and ΣΧ2 10. X EX --3, 0, 1, and 2; compute Σ(X-1), and D3-3 11. X-3,4,5, and 7; Y-1,0,1, and 2 compute ΣΧΥ and (DIP X-3, 4, 5, and 7; Ys-1,0,1, and 2; compute ΣΧ'ya and Σ(X-2)(Y-3) 's 4, 5, 6, and 9; Y -1,-1, 1, and 2; compute ΣΥ2 and Σ(X-5)(Y+ 1) 12. 13.
thank u 5. The values of a variable X are: 1,3,9,5, 4, 2 Compute the following: x3 {X? [(x - 2) XS
Problem 6 Let X , X,X,+1 be a sample from normal distribution N(hC). Let X-ΣΧ . Find c such that X belongs to the interval (R-c, R+c) with probability 0.95. Calculate that interval if X = 1, n = 8, σ
Step 4 -92,850, and (c) Use a calculator to verify that ΣΧ-56, ΣΧ2-826, Σ y·642. Σ y, xy 8.604. Compute r. As x increases from 3 to 21 months, does the value of r imply that y should tend to increase or decrease? Explain your answer First, we construct a computation table so that we can calculate the values of x2, y2, and xy. Then we sum each column to compute each summation. 3600 9025 12 14 21 60 95...
If x is a binomial random variable, calculate μ2,and σ for each of the following values of n and p. Complete parts a through f. a.n=27,p= 0.4 μ=________ (Round to the nearest tenth as needed.)
34. A set of n 5 pairs of X and Y scores has Σχ = 15, ΣΥ = 5, and ΣΧΥ = 10. For these data, the value of SP is- a. c.-10 d. 10 b. 5
(1 point) If z is a binomial random variable, compute P(C) for each of the following cases: (a) Px <6), n=8, p = 0.3 P(x) = (b) P(x > 2), n = 3, p=0.5 P(x) = (c) Pa<5), n = 8, p=0.6 P(x) = (d) P(x > 2), n = 3, p = 0.7 P(x) =
If x is a binomial random variable, compute p(x) for each of the following cases: (a) n=5,x=5,p=0.2 p(x)= (b) n=4,x=4,p=0.8 p(x)=
(1 point) If X is a binomial random variable, compute the probabilities for each of the following cases: (a) P(X < 2), n = 9, p = 0.4 Probability = (b) P(X > 3), n = 8, p = 0.35 Probability = (c) P(X < 2), n = 5, p = 0.1 Probability = (d) P(X 25), n = 9, p = 0.5 Probability =
If x is a binomial random variable, compute P(x) for each of the following cases: (a) P(x≤4),n=6,p=0.6 P(x≤4)= (b) P(x>3),n=4,p=0.9 P(x>3)= (c) P(x<6),n=7,p=0.4 P(x<6)= (d) P(x≥4),n=5,p=0.5 P(x≥4)=