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 17:00
Idont understand math at all! : o( use this scenario to answer the remaining questions: brenton purchased a new bedroom set for $4,500.00. he lives in arizona and pays a 8.75% sales tax. if he made a 50% down payment and financed the rest, what amount did he finance? what is the total sales tax brenton will pay? enter your answer in currency format, round to the nearest cent. what was brenton's total amount financed? enter your answer in currency format, round to the nearest cent.
Answers: 3
Mathematics, 21.06.2019 19:20
1- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis.2- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in the first question?
Answers: 2
Suppose 27% of all small businesses are owned by a particular group of people. In a random sample of...
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