Number of heads
Toss the fair coin till either the number of heads is 4+ the number of tails or the number of tails is 3+ the number of heads (before the first toss number of heads=the number of tails=0). Let x be the number of tosses. Find out E(x).
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78.3% of the variation in length of eruption is explained by the least-squares regression equation. 78.3% of the variation in length of eruption is not explained by the least-squares regression equation.
A simple random sample of 40 items resulted in sample mean of 25. The population standard deviation is 5. Determine the standard error of the mean (to 2 decimals)?
A retailer of electronic equipment received six VCR's from the manufacturer. Three were damaged in the shipment. The retailer sold two VCR's to two customers.
Determine the formula for number (N) of host computers as the exponential function of t, number of years since 1998 in the form N = aekt.
The average cost per night of a hotel room in New York City is $273 (SmartMoney, March 2009). Assume this estimate is based on a sample of 45 hotels and that the sample standard deviation is $65. With 95% confidence, determine the margin of error
Which of the following statements are true regarding the disadvantages of mathematical modeling?
The half life of iodine-123 is roughly 13 hrs. You start with 50 grams of iodine-123. Write the equation which provides an amount of iodine-123 remaining after t hours.
Which of the following situations is both mutually exclusive and collectively exhaustive?
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