Answer:
The probability is
Step-by-step explanation:
From the question we are told that
The proportion of total part-time workforce is
The sample size is n = 80
Generally the mean is mathematically represented as
The proportion of not part - time workforce
=>
=>
The standard deviation is mathematically represented as
Now applying the normal approximation,
Then the probability that fewer than 20 people from this sample were between the ages of 25 and 34 is mathematically represented as
Applying continuity correction
Generally
So
From the z-table
The probability is
ANSWER
The company must produce and sell more than 700 radios to have a profit.
EXPLANATION
The revenue function is
and the cost function is
The company will break even when total revenue is equal to the total cost.
This implies that,
We group similar terms to get,
This simplifies to,
Divide both sides by 8 to get,
The company breaks even by producing and selling 700 radios.
The company must produce and sell more than 700 radios to have a profit.
Substitute the values of a and b to the expression:
Answer: the cost per ounce of coffee
Explanation:
Since you are graphing the total cost on the y-axis and the ounces of coffee on the x-axis, and since slop=rise/run, your slope would be total cost/ounces of coffee. Which is what D says.