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Assume that a population is normally distributed with a mean of 300 and a standard deviation of 45. Would it be unusual for the mean of a sample of 9 to be 345 or more? Why or why not?
1.Mr. Jones sold two pipes at $1.20 each. Based on the cost, his profit one was 20% and his loss on the other was 20%. On the sale of the pipes, he: (a) broke even, (b) lost 4 cents, (c) gained 4 cents, (d) lost 10 cents, (e) gained 10 cents
The average time taken to produce a part at Factory A is 10 minutes. Given this, find the following probabilities. The probability that at least three minutes is taken
A motorboat travels 448km in 7 hours going upstream. It travels 630km going downstream in the same amount of time. What is the rate of the boat in still water and what is the rate of the current?
The sum of all of the sides of a stop sign is 96 inches. A stop sign is an octagon with all sides equal. How many inches does each side measure?
an invoice clerk receives a bill of ksh.3750 for 10 blank ledger books and 3 filing trays. after discovery that the
state the fundamental counting principle and explain it in your own words.compare and contrast permutations and
write 300-500 words that respond to the following questions with your thoughts ideas and comments. this will be the
Two tanks with equal volumes are shown below.The tops are open.The owner wants to cover one tank with a glass top.The cost of glass is $0.05 per square inch.Which tank would be less expensive to cover
A textbook store sold a combined total of 243 physics and math textbooks in a week. The number of math textbooks sold was 55 less than the number of physics textbooks sold. How many textbooks of each type were sold?
If a ball is thrown straight up into the air with an initial velocity of 45 ft/s, it height in feet after t second is given by y=45t-16t2. Find the average velocity for the time period begining when t=2 and lasting.
How many face cards are in the deck? Name them. Write out the sample space for each experiment. How many outcomes are in each sample space?
the angles of a triangle are in a.p and the greatest angle is double the least find allthe angles in degree and radian.
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