A normal distribution has a mean of 40 and a standard deviation of 8. • Sketch and label a graph of the normal distribution including a scale on the x-axis that shows the mean,
1,2 & 3 standard deviations from the mean.

Use the sketch of your normal distribution (don't use Z-scores) to find the following:
a
a P(Z < 24) =
b. P(x > 48) =
P(24 < < < 48) =

b

step-by-step explanation:

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

i think it is 18

step-by-step explanation: