Which of the following is not a characteristic of the standard normal distribution? It's neither positively skewed or negatively skewed The standard deviation can be 1 or -1 The mean value is 0 None of the above
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Q: b) Calculate the variance and standard deviation.
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Q: How is the standard deviation of returns calculated?
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Q: the standard deviation for part c are all wrong. could you please check it again?
A:
Q: d the (a) variance and (b) standard deviation
A:
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- The standard deviation of.alt=”f$ar{X},f$ “> is usually called the A.standard error of the sample B.randomized standard error C.standard error of the mean D.standard error of the population1. What percent of the area under the standard normal curve is within one standard deviation of (above or below) the mean? 2. What does this tell you about scores that are more than one standard deviation away from the mean?The standard deviation of a standard normal distribution _____. a. can be any value b. is always equal to 1 c. is always equal to 0 d. can be any positive value
- The sample size of a test of controls varies inversely with: Expected Population Tolerable deviation rate Rate A. Yes Yes B. No No C. Yes No D. No Yesq12- In the distribution of a variable, if the mean is much smaller than the median, the data distribution is: a. Uniform b. Right-skewed c. Left-skewed d. NormalIt's best to add columns for deviation, standard deviation, and squared deviation multiplied by probability.
- Is the equation for volatility not Σ P ( x - x̄ )^2 ? And I am finding online that covariance is cov(x,y) = ∑(xi - x̄)(yi - ȳ) / N - 1 , I see the equation you have given does not divide by the samples, why is this?Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p. n= 124, p = 0.56What is the difference between between beta and standard deviation?
- The variance and its square root, the standard deviation, are the most commonly used measures of volatility. True or FalseAssume the mean and standard deviation of sample returns are 8% and 10% respectively. Assuming that the returns are normally distributed, what is the probability of an actual return below 8%?The distance from the sample estimate that has a certain likelihood (equal to reliability) ofincluding the true population value is known as thea. Confidence.b. Mean.c. Precision.d. Precision interval.