Select the correct answer. Which expression is equivalent to the given expression?
1 answer:
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Answer:
Step-by-step explanation:
represents the commission on
dollars of sales.
For the first $10,000 of sales, the commission is $1400.
For each additional $10,000, the commission is $700.
The total value is $65,000.
The first $10,000 implies a commission of $1400.
The rest is $55,000, which represents 5 times $10,000 and $5,000. The additional commission is 5 times $700, which is $3500.
Therefore, the total commission for the sale of $65,000 is $4,900.
The question is incomplete. The complete question is :
The National Coffee Association reported that 62% of U.S. adults drink coffee daily. A random sample of 225 U.S. adults is selected. Round your answers to at least four decimal places as needed.
Required:
a. Find the mean μ.
b. Find the standard deviation σ.
c. The standard deviation σ.
Solution :
a). Percentage of the US adults who drinks coffee daily = 62%
Therefore, the mean, μ = 0.62
b). We know, p = μ = 0.62
And n = 225
Therefore, the standard deviation is given by :
c). Standard deviation, σ = 0.0324