Example 3: using a spreadsheet to find normal probabilities
return to the information given i...
Mathematics, 08.01.2020 23:31 Schoolworkspace453
Example 3: using a spreadsheet to find normal probabilities
return to the information given in example 1. the usda, in its official food plans (), states that the average cost of food for a 14- to 18-year-old male
(on the moderate-cost plan) is $261.50 per month. assume that the monthly food cost for a 14- to 18-year-old male is approximately normally distributed with a mean of $261.50 and a
standard deviation of $16.25. round your answers to four decimal places.
use a spreadsheet to find the probability that the monthly food cost for a randomly selected 14- to 18-year-old male is
a. less than $280.
b. more than $270.
c. more than $250.
d. between $240 and $275.
Answers: 3
Mathematics, 22.06.2019 02:20
Jenny invests $2,000 at an interest rate of 5%. the amount of money, me, in jenny's account after tyears can be represented using the equation ma-2000(1.05). if jenny would have invested the same amount of money at the same interest rate four years ago, the equation representing the amount of money mo. in her account would be represented using the equation! mg = 2000(105)*** which of the following is equivalent to mp? 2000(105) om- 1.05 2000(1.05) mo 1059 mp-2000(1.05) (105) mp - 2000(1.05) + (1.05)
Answers: 1
Mathematics, 22.06.2019 03:30
If using the method of completing the square to solve the quadratic equation x 2 + 16 x + 24 = 0 x 2 +16x+24=0, which number would have to be added to "complete the square"?
Answers: 1
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