subject
Mathematics, 11.12.2020 03:30 misswonderless

Quiz 1 You might need: Calculator
A couple decides to keep having children until they have a girl, at which point they will stop having
children. They also agree to having a maximum of three children. The table below shows the probability
distribution of X = the number of children such a couple would have.
X = # of children
1
2.
3
P(X)
0.5
0.25
0.25
Given that pix = 1.75 children, find the standard deviation of the children such a couple would have
Round your answer to two decimal places.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 13:30
12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain
Answers: 2
question
Mathematics, 21.06.2019 14:30
Arrange these numbers from least to greatest 3/5 5/7 2/9
Answers: 2
question
Mathematics, 21.06.2019 18:40
2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?
Answers: 1
question
Mathematics, 21.06.2019 21:30
Vanessa earns a base salary of $400.00 every week with an additional5% commission on everything she sells. vanessa sold $1650.00 worth of items last week.
Answers: 2
You know the right answer?
Quiz 1 You might need: Calculator
A couple decides to keep having children until they have a...
Questions
question
Chemistry, 19.08.2019 09:00
Questions on the website: 13722367