A derivative has 50/50 chance of being worth +10 or -10 at expiry. What is the standard deviation of derivative?

A distribution of values is normal with a mean of 214 and a standard deviation of 10.Find the probability that a randomly selected value is less than 203.P(X < 203) = Enter your answer as a number accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

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Today, the waves are crashing onto the beach every 4.9 seconds. The times from when a person arrives at the shoreline until a crashing wave is observed follows a Uniform distribution from 0 to 4.9 seconds. Round to 4 decimal places where possible. The mean of this distribution is  The standard deviation is  The probability that wave will crash onto the beach exactly 0.6 seconds after the person arrives is P(x = 0.6) =

The standard error of estimate is the standard deviation of the observed x-values about the predicted x values TRUE OR FALSE

A distribution with µ = 55 and o = 6 is being standardized so that the new mean and standard deviation will be u = 50 and o = 10. When the distribution is standardized, what value will be obtained for a score of X= 58 from the original distribution?

In Fall 2019 the mean GPA of the 7000 students enrolled at Boatsville College was 2.81, with standard deviation 0.95. During that semester a random sample of 17 students was selected and determined to have a mean of 3.18 and standard deviation of 0.83. Match the symbols with their values. |The parameter is = 3.18, and the statistic is H = 2.81 The population mean is ī = 2.81, and the sample mean is u = 3.18 The parameter is u = 3.18, and the statistic is T = 2.81 The population mean is u = 2.81, and the sample mean is a = 3.18 None of the above is correct

Today, the waves are crashing onto the beach every 6 seconds. The times from when a person arrives at the shoreline until a crashing wave is observed follows a Uniform distribution from 0 to 6 seconds. Round to 4 decimal places where possible. The mean of this distribution is  The standard deviation is  The probability that wave will crash onto the beach exactly 3.9 seconds after the person arrives is P(x = 3.9) =

adult men have heights with a mean of 69.0 inches and a standard deviation of 2.8 inches find the z- score of a man 65.6 inches tall. ( to 2 decimal places)

The mean of a distribution is 15 and the standard deviation is 3. Use Chebyshev's Theorem and the formula 1 - 1 / (k ^ 2) to determine the minimum percentage of values that will fall between 9 and 21