Mathematics, 04.12.2019 00:31 fluffy37
Scores on a recent national statistics exam were normallydistributed with a mean of 80 and a standard deviation of 6.a) what is the probability that a randomly selected examwill have a score of at least 71? b) what percentage of exams will have scores between 89and 92? c) if the top 2.5% of test scores receive merit awards, what is the lowest score eligible for an award? d) if there were 334 exams with scores of at least 89,how many students took the exam?
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Mathematics, 21.06.2019 18:30
Write an algebraic expression to match each statement a. four less than 8 times a number b. twice the difference of a number and six c. nine from a number squared
Answers: 1
Mathematics, 21.06.2019 21:30
The expression 1.01*1.005(^t) gives the amount of money, in thousands of dollars, in carter's savings account (t) years after he opens it. what does 1.01 represent in this expression?
Answers: 1
Mathematics, 21.06.2019 21:30
Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?
Answers: 1
Scores on a recent national statistics exam were normallydistributed with a mean of 80 and a standar...
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