The point estimate for the population standard deviation of the height of the cabinets equals to the provided standard deviation of the cabinets. Rounding off the given standard deviation which is 2.1 to 2 decimal places as the question requires then the point estimate for the population standard deviation of the height of the cabinets is approximately 2.10 ( 2 decimal places)
Two trapezoid are similar so it has some scale factor look longer base of a big trap is 8 mi,and longer base of shorter trap is 4mi. so that is half of big trapezoid. so little trapezoid base should be 1 as big trap's shorter base is 2mi<span />
