5. Let fx(x) be a pdf given by fx(x) = (1/8)(e^(-x/8)) for x > 0. a)...

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5. Let fx(x) be a pdf given by fx(x) = (1/8)(e^(-x/8)) for x > 0. a)...

5. Let fx(x) be a pdf given by fx(x) = (1/8)(e^(-x/8)) for x > 0.

a) Find the CDF FX(x).

b) Find P(X > 4)

c) Find P(-2 ≤ X ≤ 12)

d) Find P(X < 240)

e) Find E(X)

f) Find the standard deviation of X.

math Statistics-And-Probability

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Answer 1

Answer #1

Answes Giventhat for >o (a) CDF Rix) fx(x)dx ( 5sume 8/A = 1- e/8 CDF Fxl) -e/8 (b) Sf) dz PCx>4) 4 di - 4 -Co-e-4/) e-2 Scan CC PC-2Sx 12) 12 S 2 12 -*/712 1- e5 0.223) ン 0-7469 15x7-)d (d PCX24D 240 dz -x/g7240 -30 E e 1-9.3 Sx/0ly CS CamScanner Sca

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