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# For a standardized psychology examination intended for psychology majors, the historical data show that scores have a mean of 505 and a standard deviation of 170. the grading process of this year's exam has just begun. the average score of the 35 exams graded so far is 530.what is the probability that a sample of 35 exams will have a mean score of 530 or more if the exam scores follow the same distribution as in the past? ### Another question on Mathematics Mathematics, 04.02.2019 02:30
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Aflagpole broke in a storm. it was originally 8 1 81 feet tall. 2 8 28 feet are still sticking straight out of the ground, where it snapped, but the remaining piece has hinged over and touches the ground some distance away. how far away is the end of the pole from the base of the pole along the ground? Mathematics, 02.02.2019 06:28
Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem. Mathematics, 02.02.2019 04:21
Calculate the average rate of change over the interval [1, 3] for the following function. f(x)=4(5)^x a. -260 b. 260 c. 240 d. -240
For a standardized psychology examination intended for psychology majors, the historical data show t...
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