It is known that the mean weight of the population of newborn infants is 7.4 pounds with a standard deviation of 1.1 pounds. What is the weight (in pounds) of a newborn infant with a z score of 0.87

8.357 pounds

Step-by-step explanation:

Attached below is the step-by-step explaination of the solution.

ab will be equal to

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720