Scores on a 100-point final exam administered to all applied calculus classes at a large university are normally distributed with a mean of 72.5 and a standard deviation of 7.5.

(c) At what score was the rate of change of the probability density function for the scores a maximum?

(d) According to the Empirical Rule, approximately what percentage of scores were above 80?
%

(e) According to the Empirical Rule, the lowest 2.5% of the scores were below
.

2.

according to newton’s cannonball model, what happens if the cannonball's velocity is enough to overpower the pull of earth’s gravitystep-by-step explanation:

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

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