As a measure of intelligence, mice are timed when going through a maze to reach a reward of food. the time (in seconds) required for any mouse is a random variable y with a density function given by f(y) = b y2 , y ≥ b, 0, elsewhere, where b is the minimum possible time needed to traverse the maze. (a) show that f(y) has the properties of a density function.

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. your answer will contain x - and y -terms. (1 point) x ( ¿¿ 2 − 7 ) 2 +( y 2 − 9 ) 2 √ ¿ 12. what is the distance from the directrix (the crocodile river) to the point ( x , y )? write this equation. your answer will contain a y -term.

168

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i am pretty sure that the answer is 168

oof

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