Mathematics, 04.09.2019 17:30 lerasteidl
The national average for the math portion of the college boards sat is 521 with a standard deviation of 84 and the median is 521. what is the shape of the sat math score distribution? why? and what rule (empirical or chebyshev's) predicts that how many percent of the sat math score data should lie between a 353 and 689, which are +/-(number) standard deviation away from the mean?
Answers: 3
Mathematics, 21.06.2019 16:30
You drop a rubber ball off the roof of a 50 meter high building onto a paved parking lot. it bounces back up with every bounce, but not quite all the way back up to you. after the first bounce it bounces back only 80 percent of the distance it was dropped from. the pattern continues, meaning after every bounce it comes up to just 80 percent of the previous maximum height. so if before the first bounce the height is 50 meters, what height does the ball reach after the fifth bounce? round your answer to one decimal place and chose the correct response from the choices below:
Answers: 1
Mathematics, 21.06.2019 22:40
Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y
Answers: 1
The national average for the math portion of the college boards sat is 521 with a standard deviation...
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