Question
In: Statistics and Probability
A certain flight arrives on time 80 percent of the time. Suppose 162 flights are randomly...
A certain flight arrives on time 80 percent of the time. Suppose 162 flights are randomly selected. Use the normal approximation to the binomial to approximate the probability that
a) exactly 138 flights are on time
b) at least 138 flights are on time
c) fewer than 141 flights are on time
d) between 141, and 142, inclusive are on time.
Solutions
orchestra answered 1 year agoRelated Solutions
A certain flight arrives on time 80 percent of the time. Suppose 165 flights are randomly...
A certain flight arrives on time 80 percent of the time. Suppose
165 flights are randomly selected. Use the normal approximation to
the binomial to approximate the probability that (a) exactly 135
flights are on time. (b) at least 135 flights are on time. (c)
fewer than 146 flights are on time. (d) between 146 and 148 ,
inclusive are on time.
P(135)=
A certain flight arrives on time 80 percent of the time. Suppose 169 flights are randomly...
A certain flight arrives on time 80 percent of the time. Suppose
169 flights are randomly selected. Use the normal approximation to
the binomial to approximate the probability that (a) exactly 139
flights are on time. (b) at least 139 flights are on time. (c)
fewer than 125 flights are on time. (d) between 125 and 150,
inclusive are on time. (a) P(139)equals nothing (Round to four
decimal places as needed.)
A certain flight arrives on time 80 percent of the time. Suppose 132 flights are randomly...
A certain flight arrives on time 80 percent of the time. Suppose
132 flights are randomly selected. Use the normal approximation to
the binomial to approximate the probability that (Round to four
decimal places as needed)
(a) exactly 103 flights are on time.
(b) at least 103 flights are on time.
(c) fewer than 99 flights are on time.
(d) between 99 and 100, inclusive are on time.
A certain flight arrives on time 90 percent of the time. Suppose 185 flights are randomly...
A certain flight arrives on time 90 percent of the time. Suppose
185 flights are randomly selected. Use the normal approximation to
the binomial to approximate the probability that (a) exactly 170
flights are on time. (b) at least 170 flights are on time. (c)
fewer than 174 flights are on time. (d) between 174 and 178,
inclusive are on time.
A certain flight arrives on time 81 percent of the time. Suppose 175 flights are randomly...
A certain flight arrives on time 81 percent of the time. Suppose
175 flights are randomly selected. Use the normal approximation to
the binomial to approximate the probability that
(a) exactly 152 flights are on time.
(b) at least 152 flights are on time.
(c) fewer than 141flights are on time.
(d) between 141 and 148 inclusive are on time.
A certain flight arrives on time 82 percent of the time. Suppose 153 flights are randomly...
A certain flight arrives on time 82 percent of the time. Suppose
153 flights are randomly selected. Use the normal approximation to
the binomial to approximate the probability that
(a) exactly 138 flights are on time.
(b) at least 138 flights are on time.
(c) fewer than 120 flights are on time.
(d) between 120 and 125, inclusive are on time.
(Anything helps! Thank you)
A certain flight arrives on time 86 percent of the time. suppose 156 flights are randomly...
A certain flight arrives on time 86 percent of the time. suppose
156 flights are randomly selected. use the normal approximation to
the binomial to approximate the probability that
a) exactly 140 flights are on time
b) at least 140 flights are on time
c) fewer than 137 flights are on time
d) between 137 and 138, inclusive are on time
A certain flight arrives on time 86 percent of the time. suppose 156 flights are randomly...
A certain flight arrives on time 86 percent of the time. suppose
156 flights are randomly selected. use the normal approximation to
the binomial to approximate the probability that
a) exactly 140 flights are on time
b) at least 140 flights are on time
c) fewer than 137 flights are on time
d) between 137 and 138, inclusive are on time
A certain flight arrives on time 81 percent of the time. Suppose 159 flights are randomly...
A certain flight arrives on time 81 percent of the time. Suppose
159 flights are randomly selected. Use the normal approximation to
the binomial to approximate the probability that (a) exactly 121
flights are on time. (b) at least 121 flights are on time. (c)
fewer than 138 flights are on time. (d) between 138 and 143,
inclusive are on time.
A certain flight arrives on time 84 percent of the time. Suppose 167 flights are randomly...
A certain flight arrives on time 84 percent of the time. Suppose
167 flights are randomly selected. Use the normal approximation to
the binomial to approximate the probability that
(a) exactly 127 flights are on time.
(b) at least 127 flights are on time.
(c) fewer than 144 flights are on time.
(d) between 144 and 154, inclusive are on time.
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