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9 Sep 2020
The probability that a patient arriving at an emergency unit
needs to stay overnight is estimated to be 0.2.
Assume the patients are admitted for overnight stay independent of
each other.
(a) The doctor has seen 5 patients in the first hour. What is the
probability that more than 4
have to stay overnight?
(b) A doctor starts her shift at 8PM. What is the probability that
the first patient that will be
registered for an overnight stay is the 4-th patient?
(c) The emergency unit has a capacity of 5 beds. Each shift starts
with all the beds free (patients
are being transferred to a hospital by the end of the shift).
Calculate the expected number of patients the
doctor needs to see till all 5 beds are occupied.
The probability that a patient arriving at an emergency unit
needs to stay overnight is estimated to be 0.2.
Assume the patients are admitted for overnight stay independent of
each other.
(a) The doctor has seen 5 patients in the first hour. What is the
probability that more than 4
have to stay overnight?
(b) A doctor starts her shift at 8PM. What is the probability that
the first patient that will be
registered for an overnight stay is the 4-th patient?
(c) The emergency unit has a capacity of 5 beds. Each shift starts
with all the beds free (patients
are being transferred to a hospital by the end of the shift).
Calculate the expected number of patients the
doctor needs to see till all 5 beds are occupied.
steven03Lv10
26 Jun 2023
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