Determine the gradient of line AC
1 answer:
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Answer:
Step-by-step explanation:
The normal distribution curve standard is bell shaped having mean =0 and std devition =1.
This is symmetrical about the y axis i.e. mean. More than 99% of the area under the curve lie between z=-3 to z=3
To find the area to the right of z =0.05 is equivalent to
calculating the
Probability that Z >0.05
= P(Z>0.05)
=0.5-0.0199
=0.4801
(the sketch is attached)
Plug in -12 for 
!
Now get the left side equal to zero so you can factor:
Now you can factor out an
!
So for that to equal zero,
or 
!
Now get the left side equal to zero so you can factor:
Now you can factor out an
So for that to equal zero,