E. RANDOM VARIABLE Xhas a Binomial Distribution, B(64, 0.5).

#10. Standard deviation of X = __________

#11. Use Normal approximation, P(X > 24) = __________

F.Let P(A) = 0.6, P(B) = 0.7, and P(A or B) = 0.7, then P(A and B) = ___________

G. #12. From a student's' t-table,

find m such that P(t > m) = 0.05 with sample size is 9.m = __________

H. For events A, B, C, P(A) = 0.3, P(B) = 0.4, and P(C) = 0.5, then

#13. What is the range of P(A or B or C)?Ie,_______ P(A or B or C) _______

I.For some distribution, It is possible that Mean, Mode, and Medianare all same.

#14.True ______ ,False ______