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sigma is the standard deviation

If sigma(t)^2 denotes the standard deviation in the quantity t^2, show thatsigma(t)^2=2tsigma(t) I don't even know where to
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2. asked by Anna
3. 549 views
Which answer showsi. The mean of the distribution of ii. The standard deviation of the distribution of iii. The mean of the
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2. 108 views
Use a calculator to find the mean and standard deviation of the data. Round to the nearest tenth.6,7,19,7,18,7 A. mean = 9;
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2. asked by Veronika
3. 2,199 views
For a Normal distribution with mean, mu=2, and standard deviation, sigma = 4,70% of all observations have values between x and y
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2. asked by Jackie
3. 641 views
The lengths of a particular snake are approximately normally distributed with a given mean Mu = 15 in. and standard deviation
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2. 106 views
Suppose that you got a score of X=78 on an English test for which the mean was (mu)=70 and the standard deviation was (lower
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2. asked by Kat
3. 1,174 views
Given that; Sigma*x = 52; n = 8; Sigma*y = 225; Sigma*xy = 1335; Sigma * x ^ 2 = 380; Sigma * y ^ 2 = 7007 and Calculated the
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2. 125 views
You wish to test the following claim (H_a) at a significance level of alpha= 0.001.H_o : mu = 74.7 H_a : mu < 74.7 You believe
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2. 158 views
Find the standard deviation, Sigma, for the binomial distribution which has the stated values of n and p. Round your answer to
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2. asked by todd
3. 2,313 views
sigma is the standard deviation of a population of size NS is the standard deviation of a sample of size n from within the
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2. asked by mathstudent
3. 1,294 views