math, pre- statistics

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Hospital records indicated that maternity patients stayed in the hospital for a number of days shown in the distribution
Days Stayed Frequency
1 34
2 23
3 17
4 11
5 8

If a patient's records are selected calculate the probability of each event.
A patient stay exactly 3 days.(Round to nearest thousandth)

  • math, pre- statistics -

    17 out of a total of 93 patients stayed for 3 days
    21/93 = ?

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