CP Stats Quiz Normal Model Cohort A Name: Make sure to list the values and the percentages in the model below:
I
2. The Postmaster of a city's Post Office believes that a Normal model is useful in projecting the
number of letters which will be mailed during the day. They use a mean of 20,000 letters and a
standard deviation of 250 letters. Draw and clearly label this model.
From the Model in #1, what percent of days would you expect to be:
2. Below 19,500 letters
3. Between 20,000 and 20,750
4. Above 20,250 letters
5. Use Z-Scores to determine the solution:

the correct answer is option c.   3

step-by-step explanation:

points to remember

equation of the line with coordinates (x₁, y₁) and (x₂, y₂) is given by,

slope m = (y₂ - y₁)/(x₂ - x₁)

from the figure we can see a line with two coordinates given

to find the slope of given line

here   (x₁, y₁)   = (-1, -1 ) and (x₂, y₂) = (1, 5)

slope m = (y₂ - y₁)/(x₂ - x₁)

  = (5 - -1)/(1 - -1)

  = (5 + 1)/(1 + 1)

  = 6/2 = 3

therefore the correct answer is option c.   3

dd

step-by-step explanation:

dd

b

step-by-step explanation:

hi how are you doing today? if you ever need just tell me

step-by-step explanation: