what is the standard deviation of the number of A Recoveries among 48 patients when the probability of Recovering is 0.75
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Answer:
The answer is 3.
Step-by-step explanation:
Standard deviation = √npq
Where "n" is the number of patients = 48
"p" is the chances of success = 0.75
"q" is the chance of failure = 0.25
Therefore,
Standard deviation = √ 48 x 0.75 x 0.25
= √9 = 3
Thus the value of standard deviation is 3.
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