A yardstick shows 36 inches. There are 36 inches in a yard. A Meter stick shows 100 centimeters. There are 100 centimeters in a meter. A tape measure can shows inches and centimeters. Rulers often shows both inches and centimeters. Many rulers show 12 inches. This is equal to 1 foot. Why is it easier to measure the ribbon with a meter stick than witch a ruler? It's better because it is better to measure it. Some measuring tools are longer than a ruler.

1. suppose that scores on a knowledge test are normally distributed with a mean of 71 and a standard deviation of 6. a. label the curve: show the mean and the value at each standard deviation: b. if angelica scored a 76 on the test, what is her z-score? (draw her score on the curve above and label) c. what percent of students did angelica score higher than? how can you tell? d. if 185 students took the test, how many students scored higher than angelica?