Answer: easy peasy so your answer would be 4=(6x7)x12 so what you would do is take the first two and dived them your answer you want to dived it with your other numbers
Step-by-step explanation:
A)
Let X be the food expenditure of a family.
Let the population mean of an expenditure of a family be.
Let the population standard deviation of an expenditure of a family be.
The proportion families spend more than $30 but less than $490 per month on food is,
.2 per treat 2 cents per treat