Answer:
Step-by-step explanation:
we are given that
line passes through (2,-1) and (6,4)
Firstly, we will find equation of line
First point is (2,-1)
x1=2, y1=-1
second point is (6,4)
x2=6 , y2=4
now, we can find slope
now, we can plug values
now, we can use point slope form of line
now, we can plug values
since, we have to solve for x from (x,0)
so, we can set y=0
and then we can solve for x
Answer:
And using the normal standard distribution table or excel we got:
The excel code would be:
"=NORM.DIST(1.38,0,1,TRUE) -=NORM.DIST(0,0,1,TRUE)"
Step-by-step explanation:
For this case we know that our random variable of interest is Z and the distribution is given by:
This distribution is an special case of the normal distribution.
And we want to find this probability:
And we can find this probability with this difference and using the concept of cumulative distribution function for a continuous distribution:
And using the normal standard distribution table or excel we got:
The excel code would be:
"=NORM.DIST(1.38,0,1,TRUE) -=NORM.DIST(0,0,1,TRUE)"