The probability of an outcome that lies within 95% of the mean is a good indicator that it lies in which standard deviation? a. There is a probability that the outcome is within 1 standard deviation of the mean.

b. There is a probability that the outcome is within 2 standard deviations of the mean.

c. Standard deviations are not reliable, so the probability cannot be determined.

d. There is a probability that the outcome is within 3 standard deviations of the mean.

If you answer 2+2 you will get over 80 points

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Which of these lines passes through the point (1,-1) and has a slope of -3?