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1.What is the mode of the following numbers?
–9, 5, 3, –1, 3, 1, –2
2.Given that the mean of a set of data is 25 and the standard deviation is 3, what would be the coefficient of variation?
3. Find the median for the following data.
6, 7, 4, 5, 3, 7, 4
4. What is the mean of the following numbers?
–10, –7, –3, –2, 2
5. If the mean of a set of data is 23.00, and 10.00 has a z-score of –1.30, then the standard deviation must be:
6. If a set of 16 numbers has standard deviation 9, then what is its variance?
7. If a set of data has 49 points and variance 36, then what is the standard deviation?
8. If a student scored 74 points on a test where the mean score was 80 and the standard deviation was 6. What was the student's z-score?
Let A subset or equal of R be bounded above and let c belong to R. Define the sets c+A and cA by c+A={c+a : a belong to A} and cA={ca : a belong to A}.
Calculate the unpaid balance on debt after 5 years of monthly payments on $160,000 @3% for 25 years.
a manager of a small store wanted to discourage shoplifters by putting signs around the store saying shoplifting is a
A motel cleark counts his 1 dollar bills and his 10 dollar bills at the end of a day. He finds that he has a total of 64 bills, having a combined monetary value of $190. Find the number of bills of each denomination that he has.
A square has a 40-cm diagonal. How long is each side of the square? Round your answer to the nearest tenth of a centimeter.
q1 find three positive numbers whose sum is 54 and whose product is as large as possible.q2nbsp let fxy x2 3y -3xy and
Find the slope of the line passing through the points (1990, 3.5) and (2005, 5.15). Interpret the slope as a rate of change.
Write the word form of the numbers whose ones period is 381, hundreds period is 350, thousands period is 109 and millions period is 826.
The sail area displacement ration S provides a measure of the sail power available to drive a boat. For a boat with a displacement of d pounds and a sail area of A square feet.
To accomplish this reduction, management decides that the new bar should have teh same 3-cm thickness, but the length and width of each should be reduced an equal number of centimers. What should be the dimensions of the new candy bar?
Let R be a commutative ring with 1. Prove that if (a,b)=1 and a divides bc, then a divides c. More generally, show that if a divides bc with nonzero a,b then a/(a,b) divides c.
An air ambulance is travelling from Barrie to Toronto. Toronto is located 90 km [S5°E] of Barrie. If the wind is blowing from the South with a velocity of 62 km/h, and the plane's air speed is 375 km/h, what direction must the pilot fly to make it..
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