5. Consider selecting one card at a time from a 52-card deck. What is
1. True or False. Justify for full credit.
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1. True or False. Justify for full credit.
(a) If A and B are any two events, then P(A AND B) = P(A) + P(B).
(b) If the variance of a data set is 0, then all the observations in this data set must be identical.
(c) A normal distribution curve is always symmetric to its mean.
(d) When plotted on the same graph, a distribution with a mean of 60 and a standard deviation of 5 will look more spread out than a distribution with a mean of 40 and standard deviation of 8. Mehr anzeigen
