Mary Kim invested $970 in 17 shares of stock. A month later, she sold the 17 shares at $60.63 per share. She also invested in 250 shares of stock for a total of $22,162.50. She sold this stock for $81.19 a share and paid $520 in total commissions. What was Mary Kim's profit or loss on the transactions to the nearest dollar?

Which property is illustrated by the following statement? if hxa rgi, then rgi hxa.

The fraction of defective integrated circuits produced in a photolithography process is being studied. a random sample of 300 circuits is tested, revealing 17 defectives. (a) calculate a 95% two-sided confidence interval on the fraction of defective circuits produced by this particular tool. round the answers to 4 decimal places. less-than-or-equal-to p less-than-or-equal-to (b) calculate a 95% upper confidence bound on the fraction of defective circuits. round the answer to 4 decimal places. p less-than-or-equal-to

Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).