What is the mean and standard deviation

Reference no: EM131399819

1. if the possible values for x are 1, 2, 3, 4, 5 with probabilities .2, .1, .1, .5, .1, respectively, what are the population mean, variance and standard deviation?

2. If the possible values for x are 1, 2, 3 with probabilities .2, .6 and .2, respectively, what is the mean and standard deviation?

Reference no: EM131399819

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