by | Mar 29, 2022 | APA 7th edition, Mathematics - Probability

The average teachers’ salary in a certain state is $57,337. Suppose that the distribution of salaries is normal with a standard deviation of $7500. Assume that the sample is taken from a large population and the correction factor can be ignored. Use a...
by | Mar 22, 2022 | APA 7th edition, Mathematics - Probability

There are two boxes, containing 1 black ball and 10 white balls and 6 black balls and 7 white balls respectively. 4 Balls are randomly taken from the first box and put in the second box. Then one ball is drawn out from the second. Find the probability that:1) the ball...