Answer:
1.75,0.625
Step-by-step explanation:
Given that a couple plans to have children until they get a girl, but they agree that they will not have more than three children even if all are boys.
a) The couples can have
X I girl I boy, II girl I,II boys, III girl I,II,III boys
Pr. 0.5 0.25 0.125 0.125
b) Expected no of children
=
c)Expected number of boys
=
The probability that the sample mean will be greater than 193 mg/dl is 0.4522.
<h3>z score</h3>The z score is used to determine by how many standard deviations the raw score is above or below the mean. It is given by:
Given that:
For x > 193 mg/dl:
P(x > 193) = P(z > 0.12) = 1 - P(z < 0.12) = 1 - 0.5478 = 0.4522
The probability that the sample mean will be greater than 193 mg/dl is 0.4522.
Find out more on z score at: brainly.com/question/25638875