MathematicsEasy75×since 2002Q4878Let a random variable X have a binomial distribution with mean 8 and variance 4. If P(X≤2)=k216P\left( {X \le 2} \right) = {k \over {{2^{16}}}}P(X≤2)=216k, then k is equal to :A17B1C137D121Check answerSkip