I am probability and statistics I'm the normal distributions unit and need to find the probability of the graph. the mean is 30 and standard deviation is 3, if that helps. I would like it explained in a way where I can do the rest of the questions myself. ​

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look at the picture i have filled out a table for it. hope this .

option (a)

step-by-step explanation:

step 1:   take 2 number whose product equal to 25..

and sum of those two number are -10

step: 2 for example here if we take 5,5 are the number,,

5*5=25

and

5+5=10

but we need -10

so if we take   -5,-5

so -5*-5=25

and -5+(-5)=-10

s0

come the equation

replace -10x by these number

like -5x -5x+25

take common

x(x-5)-5(x-5)=0

(x-5)(x-5)=0