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A person owns a collection of 25 movies, five of which are English. If four movies

are selected at random, find the probability that three of them are English




السووال التااني ....


If all the points fall on the straight line the value of r will be





If P(a<z<b)=0.95, then the value of the standard deviations equals


الجواب 1 .... موو المفروض 2

How many times a die is rolled when the mean for the number of 3's that will be

rolled=60






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