Probability of a disaster

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An Air Force study indicates that the probability of a disaster such as the January 28th,1986 explosion of the space shuttle Challenger was 1 in 35. The Challenger was the 25th mission. How many disasters would you expect in the first 25 flights? Use the normal approximation to estimate the probability of at least 1 disaster in 25.

Reference no: EM131460931

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