A dump of our free Chat sessions, in case it is useful. It excludes white boards used during paid sessions.
tutor2 : Hello Student, May I help you with your Math problems? student : yes student : . An Air Force study indicates that the probability of a disaster such as the January 28, 1986 explosion of the space shuttle Challenger was 1 in 35. The Challenger flight was the 25th mission.
b. Use the normal approximation to estimate the probability of at least one disaster in 25 missions.
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