Answer:
1.86
Step-by-step explanation:
Given the following :
X : - - - - 0 - - - - 1 - - - - 2 - - - - - 3 - - - - 4
P(x) - 0.37 - - 0.28 - - 0.22 - - 0.22 - - 0.12
The mean of the distribution can be calculated by evaluated by determining the expected value of the distribution given that the data above is a discrete random variable. The mean value can be deduced multiplying each possible outcome by the probability of it's occurrence.
Summation of [P(x) * X] :
(0.37 * 0) + (0.28 * 1) + (0.22 * 2) + (0.22 * 3) + (0.12 * 4)
= 0 + 0.28 + 0.44 + 0.66 + 0.48
= 1.86
If the original height was 6 inches and it was reduced to half that or in other words 3 inches, do 8 inches divided by 2 to get a new width of 4 inches.
Hope this helps!
The formula for the surface area is 2(lw + lh + wh). So all you have to do is plug the values in.
Box A:
2(lw + lh + wh)
2( (4x6) + (4x25) + (6x25) ).
2(24+100+150)
2(274)
548=Surface Area
Box B:
2(lw + lh + wh)
2( (9x5) + (9x11) + (5x11) ).
2(45+99+55)
2(199)
398=Surface Area
Box C:
2(lw + lh + wh)
2( (10x5) + (10x8) + (5x8) ).
2(50+80+40)
2(170)
340=Surface Area
Answer:
y= 2.08
Step-by-step explanation:
4.58 - 2.5
4.58
- 2.50
-----------
2.08