## anonymous 5 years ago In a study of 100 common stocks, it was found that the annual dividend rates were normally distributed, with a mean of 4.0% and a standard deviation of 0.5% About how many of these stocks paid more than 5%?

1. anonymous

$\frac{X-\mu}{\sigma}$ $\frac{5-4}{.5}=2$ so you have a z score on the standard normal table of 2. You can look up the probability of being higher than that in a cart.

2. anonymous

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