A population has a mean of u = 24.8 and a standard deviation of o=4.2. For each of the following data values, calculate the z-value to the nearest hundredth. You do not need to read the Normal table.
(a) xi= 30
(b) xi= 35
(c) xi= 19
(d) xi= 15.4
(e) xi= 24.8
(f) xi= 33.2

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral

b

step-by-step explanation:

let x and 400 - x be the two numbers.  

==> 0.80x + 0.85(400 - x) = 400 - 68 from the statement of the problem.  

< ==> 0.80x + 0.85(400 - x) = 400 - 68  

==> 340 - 0.05x = 332  

< ==> -0.05x = -8 ==> x = 160, the first number ==> 400 - x = 240, the second number.

y-3=-3/2(x+4)

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