Answer:
70
Step-by-step explanation:
Answer:
P(X<118.81)=0.0803
Step-by-step explanation:
Assuming the distribution for the mean life is approximately normal, with mean 120 months and variance 64 months^2, we can calculate the parameters for a sampling distribution with sample size = 89 computers.
The sampling distribution mean will be equal to the mean for a single computer:

The standard deviation will be adjusted by the sample size as:

With these parameters, we can calculate the z-score for X=118.81.

Then, the probability that the mean of a sample of 89 computers is less than 118.81 months is:

Answer:

Step-by-step explanation:
we know that
There are
people in Springfield.
of the population of Springfield are under the age of 
so
To calculate how many people are under
in Springfield
Multiply
by

Answer:
The best approximation for the input value when f(x) = g(x) is x = 1.5.
Step-by-step explanation:
The function f(x) passes through the points (-3,1) and (0,1) and the point (1.5,1).
Therefore, the line has equation y = 1.
Now, the function g(x) passes through the points (0,-1), (1.5,1) and (3,3) points.
Therefore, the function g(x) crosses the line y = 1 at the point (1.5,1).
Hence, the best approximation for the input value when f(x) = g(x) is x = 1.5. (Answer)
They are very simalar btw weres the triangles