Mathematics, 17.06.2020 17:57 klogsdon4380
Suppose 27% of all small businesses are owned by a particular group of people. In a random sample of 300 small businesses, let x be the number owned by that group. 1. Find the mean of x. 2. Find the standard deviation of x. 3. Find the z-score for the value x = 99.5. 4. Find the approximate probability that, in a sample of 300, x is 100 or more. a. The mean of x is about b. The standard deviation of x is about (Round to three decimal places as needed.) c. The z-score is about (Round to two decimal places as needed.) d. The probability is approximately (Round to four decimal places as needed.)
Answers: 2
Mathematics, 21.06.2019 19:00
What is the expression in factored form? 225x^2 - 144 a. 9(5x+4)^2 b. 9(5x-4)^2 c. 9(4x+5)(4x-5) d. 9(5x+4)(5x-4)
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Mathematics, 21.06.2019 20:30
What is always true about a positive integer raised to a negative odd power?
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Mathematics, 21.06.2019 21:30
Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?
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Suppose 27% of all small businesses are owned by a particular group of people. In a random sample of...
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