If y has a binomial distribution with n trials and probability of success p, then the moment generating function for y is m(t) = (pet + q) n , where q = 1 − p. differentiate the moment generating function to find e(y ) and e(y 2 ). then find v (y ).

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Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Astudent has created the give circuit diagram. it consists of a battery, a resistor, and a light bulb. in one minute, 1.2c of charge flows through the resistor. how much charge flows through the light bulb in one minute?