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A random sample of 10 examination papers in a course, which was given or fail basis,...

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Basic Math

A random sample of 10 examination papers in a course, which wasgiven or fail basis, showed the following scores. (PAPER NUMBERS)(GRADES) (STATUS) 1 85 Pass 2 87 fail 3 92 Pass 4 85 Fail 5 79 Pass6 90 Pass 7 88 Fail 8 74 Pass 9 79 fail 10 91 pass 1. estimate theprobability that the grade will be more than 85. 2. estimate theprobability that the proportion of fail will be less than 0.65. 3.Estimate the 97% confidence interval for grade. 4. Estimate theinterval of proportion for pass at the 98% confidence level.

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aOut of 10 scores 5 are more than 85 so the probability that thegrade will be    See Answer
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