Answer:
Step-by-step explanation:
Given that a value of a measurement is distributed with mean 200 and standard deviation 5.
Let X be the value of measurement
X is N(200,5)
a) The probability that a single measurement exceeds 201.
=
b)The probability that an average of 100 measurements exceeds 201
=
c) Can part (a) be answered if we drop the assumption that the distribution is normal?
No, we cannot. For a single item only if normal distribution is given we can do this.
d) Can part (b) be answered if we drop the assumption that the distribution is normal?
Yes, because when sample sizes are large, the mean follows normal irrespective of original distribution
Answer:
600 miles.
Step-by-step explanation:
So basically we can write both plans as linear functions:
F(x) = $59.96+$0.14 . x
S(x) = $71.96+$0.12 . x
Where F(x) is the first plan, S(x) is the second one and X are the miles driven.
To know how many miles does Mai need to drive for the two plans to cost the same, we equalize both equations and isolate x.
F(x) = S (x)
Mai has to drive 600 miles for the two plans to cost the same-
For this case we must write in algebraic symbology the expression described above:
We have an equation, then:
We construct the equation:
Answer: