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The mean of a set of data is 3.90 and its standard deviation is 0.25. Find the z score for a value of 3.28. Round your answer to two decimal places.
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Charlie tosses five coins.what is the probability that all five coins will land tails up.
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Arectangle plot measure 20ft. by 30ft. a 3-ft.-wide sidewalk surrounds it.find the area of the sidewalk.
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The width of a rectangle is half as long as the length. the rectangle has an area of 18 square feet. what are the length and width of the rectangle?
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The mean of a set of data is 3.90 and its standard deviation is 0.25. Find the z score for a value o...
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