Let X be a Gaussian random variable with mean µ and standard deviation σ. (a) Find the pdf of Y = (2X + 5) in terms of µ and σ. (b) Evaluate E[(2X + 5) 2 ] in terms of µ and σ. (c) If µ = 5, find σ so that P(X > 9) = 0.2. (d) If µ = 12 and σ 2 = 4, find the value of λ so that P(X > λ) = 0.10.

i would need to see the dot plot : )

i'm sorry i don't know

step-by-step explanation:

step-by-step explanation:

well if you round, things become much more simple. round 5.95 to 6, 4.25 to 4, and 1.05 to 1. now, add 6+4+1 and that would equal 11. so the items together would equal to about $11.

the answer is d

step-by-step explanation:

you can also use mathway to get you answer + steps