help with 20 & 21
19. Data indicates that 60% of college students are female. If...
19. Data indicates that 60% of college students are female. If you randomly choose a students for a committee what is the probability that you will have exactly 6 females on the committee? (Use Binomial Distribution) A. .749 B. .600 C. 410 D251 6 r 20 singthe data in Question #19 above, whatistheprob ability thatyou willhav ore females on the committee? lo A. .633* B. .749 C. .400 D. .251 Fial レ USJsingthedataisQuestion #19, what isthestandarddeviation? A. 2.40 B. 5.76 C. 1.55 D. 6.00 variable, with 10 22. What is the probability that the value of a t- distributed random degrees of freedom, will be less than 2.228? 025 lolt .975* C. 475 D. 950