A certain flight arrives on time 90 percent of the time . Suppose 112 flights are randomly selected . Use the normal approximation to the binomial to approximate the probability that

( a ) exactly 109 flights are on time .

( b ) at least 109 flights are on time ,

( c ) fewer than 100 flights are on time . ( d ) between 100 and 109 , inclusive are on time .

enter your response here ( Round to four decimal places as needed . )

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