In a certain normal distribution of scores, the mean is 40 and the standard deviation is 3. find the  z-score corresponding to a score of 54.
a.
4.67
c.
–4.67
b.
18.0
d.
13.33
 

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

1010: 3030

is it i think

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph

d. all of the above

step-by-step explanation: