A 95% confidence interval for the population mean is calculated as [40, 80]. The margin of error for this interval is .

Anewborn baby had about 26,000,000,000 cells. an adult has about 4.94 times 10 to the 13 power cells. how many times as many cells does an adult have than a newborn

Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5: 2: 3. how many cups of pear juice should she use to make 20 cups of punch?

Will give a: 122 b: 90 c: 48 d: 180