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I have found standard deviation

The mean and standard deviation of 20 observations are found to be10 and 2 respectively. On rechecking, it was found that an
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A study found that for adults the general self-efficacy scale mean score was 35 and standard deviation was 12. A group of
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2. asked by Mark
3. 587 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
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A poll of 92 students found that 48% were in favor of raising tution to pave new parking lots. The standard deviation of this
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2. asked by Brianna
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Suppose x is a random variable with mean and standard deviation. If a large number of trials is observed, at least what
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2. asked by jake
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This is a standard deviation question.I don't know much about standard deviation. Here it goes... Teachers making 30,000 to
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2. asked by tanisha
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A study found that citizens spend on average $1950 per year on groceries with a standard deviation of $100. Assume that the
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2. asked by Cam
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A medical researcher believes that the standard deviation of the temperatures of newborn infants is greater than 0.6 degrees. A
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2. asked by Ina
3. 642 views
on a standard test of motor coordination, a sports psychologist found that the population of a average bowlers had a mean scores
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2. asked by jan
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A survey found that women's heights are normally distributed with mean 62.4 in andstandard deviation 2.8 in. The survey also
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2. asked by slomomo
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