The duration of direct flights from London to Singapore in a particular year followed a normal distr

Question

The duration of direct flights from London to Singapore in a particular year followed a normal distribution with mean $\mu$ and standard deviation $\sigma$.

$92$% of flights took under $13$ hours, while only $12$% of flights took under $12$ hours $35$ minutes.

Find $\mu$ and $\sigma$ in hours.

Accepted Answer

$\mu=12.8\text{ h}$, $\sigma=0.161\text{ h}$

Linear Combinations, Probability Modeling, and Parameter Estimation in Normal Distributions

Linear Combinations, Probability Modeling, and Parameter Estimation in Normal Distributions

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