(04.06 MC)  The grades on the last history exam had a mean of 80%. Assume the population of grades on history exams is known to be distributed Normally, with a standard deviation of 5%. Approximately what percent of students earn a score between 70% and 80%? (4 points)

(04.03 LC)Which of the following events is most likely to result in conditions suitable for secondary succession?

Define Osmosis. 

Breast milk has the advantage over other infant feeding products because:

A beam has dimensions of b = 16 in., h = 26 in., and d = 23.5 in. and is reinforced with 5 No. 7 bars. The concrete strength is 3,400 psi, and the yield strength of the reinforcement is 60,000 psi. Assuming the reinforcement has yielded, determine the tensile force T in the reinforcement.

Glycerol bound to three fatty acids describes a(n) __________.  This is another name for “fat molecules”.

Which of the following pH values would be the most basic?

For economic reasons, reinforced concrete should be designed to be _______.

(06.07 MC)  The number of cavities in school-aged children and size of vocabulary are known to have a strong negative association. Toby concluded that the number of cavities causes a decrease in vocabulary. Is Toby’s conclusion valid? Explain. (4 points)

(04.02 MC)  A coin is weighted so the probability of heads is 0.65. The coin is tossed 15 times, and the number of times heads shows is recorded. This procedure is repeated 100 times with the number of times heads shows noted each time. What kind of distribution is simulated? (4 points)