Answer:
μy = $6.56 ; σy = 2.77
Step-by-step explanation:
Given the data :
Mean μx= $8.56
Standard Deviation σx ≈ 2.77
Profit, Y on pizza with current promo :
Price off on pizza = $2
Y = x - 2
μx = E(x) = $8.56
μy = μ(x - 2)
μy = μx - $2
μy = $8.56 - $2
μy = $6.56
For the standard deviation of y
σx ≈ 2.77
σy = σ(x - 2)
σy = σx - 2
Constants are treated as 0 for standard deviation
σy = 2.77
Given the sides 3 inches, 4 inches and 1 inch, the possible number of triangle that you can draw is only 1. Since a triangle has 3 sides, then you are given 3 sides, then the possibility is 1. To check whether the sides are legitimate to form a triangle, following a theorem, the sum of two sides must be greater than the third side.
Answer:
3/10
Step-by-step explanation:
Got the answer from khan academy, hope this helps.
PAr is the correct answer