Find probability that family spends less amount per month
The mean amount spent by a family of four on food per month is $500 with a standard deviation of $75. Assuming that the food costs are normally distributed, what is the probability that a family spends less than $410 per month?
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The annual incomes of Unique, another firm similar to Elly's Industries, were also studied and found to have a mean of $38,900 and a standard deviation of $6,612. What company has the greater coefficient of variation?
A financial analyst is studying the feasiblity of two alternative assembly methods, manual and automated, the automated method has variable operating costs of $2.10 per unit and annual committed cost of $ 130,000 in contrast the manual method.
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All depreciation charges are fixed and are expected to remain the same for year 2. Sales volume is expected to increase by 20 percent, but prices are expected to fall by 6 percent.
Assuming that the food costs are normally distributed, what is the probability that a family spends less than $410 per month?
Boing Inc operates a commuter airline, last year the airline flew 10,000 flights and sold 400,000 one way tickits at $ 59 per tickits, total costs amounted to $ 21,600000.
From the following stem-and-leaf display, find the minimum value, the 1stquartile, the median, the 3rdquartile, and the maximum value. List and interpret the interquartile range.
Mr. and Mrs. Jones live in a neighborhood where the mean family income is $45,000 with a standard deviation of $9,000. Mr. and Mrs. Smith live in a neighborhood where the mean is $100,000 and the standard deviation is $30,000. What is the relative
Question: Find the probability that in 200 tosses of a fair die, we will obtain at least 40 fives.
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