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A die is tossed 90 times. Find the standard errror for the number of sixes rolled.
a. 8.23
b. 3.54
c. 5.78
d. 9.88
Statistics and Probability, Statistics
Borel wants to be a millionaire when he retires in 40 years. How much does he have to save each month if he can earn a 10% annual return? (round off all answers to 2 decimal places)
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On average, there are 30% of defects per square foot of photographic paper. Assume independence. We examine 100 sheets of photographic paper. Find the probability of 0 defects in one sheet.
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