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)
17 out of a total of 93 patients stayed for 3 days
21/93 = ?
To calculate the probability of a patient staying exactly 3 days, we need to find the total number of patients and the number of patients who stayed exactly 3 days.
From the given data, we can see that:
Days Stayed Frequency
1 34
2 23
3 17
4 11
5 8
To find the total number of patients, we sum up the frequencies:
Total number of patients = 34 + 23 + 17 + 11 + 8 = 93
To find the number of patients who stayed exactly 3 days, we look at the frequency for the respective category:
Number of patients who stayed exactly 3 days = 17
Now we can calculate the probability:
Probability of a patient staying exactly 3 days = (Number of patients who stayed exactly 3 days) / (Total number of patients)
= 17 / 93
≈ 0.183
Therefore, the probability of a patient staying exactly 3 days is approximately 0.183.