The human gestation times have a mean of about 266 days, with a standard deviation of about 10 days. Suppose we took the average gestation times for a sample of 100 women.
days
Where would the center of the histogram be?
What would the standard deviation of that histogram?
My sample shows a mean of 264.8 days. What is my z-score?
days (Round to the thousandth place)
My sample shows a mean of 264.8 days. What is my z-score?
(Round to the tenth place)

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d. $180

step-by-step explanation:

if the dimensions of the room is 9ft by 12 ft, we have the area of the floor as,

so the area of the floor is 108 square feet, converting that into square yards we get,

the cost of carpet is $15 per square yard, therefore the cost of carpet for 12 square yards is,

hence, the cost of carpet is $180.

assuming the dimensions of the room be,

15 ft by 12 ft

so, the area of the floor of that room is,

we can convert 180 square feet into square yards, we know that,

1 sq ft = 0.111 sq yard

so, 180 square feet is,

so the area of floor is 20 square yards.

now, the cost of carpet is 15 dollars per square yard, therefore the cost of carpet for 20 square yards is,

so, it will cost $300.

step-by-step explanation: