zitlays
03.02.2021 •
Mathematics
Assume the probability is 1/2 that a child born at any time is a boy and births are independent. What is the probability of the event that if a family has 4 children, they are all boys? Please help :(
Solved
Show answers
More tips
- H Health and Medicine 5 Simple Steps to Quit Smoking for Good...
- H Health and Medicine Coughing: Causes, Types, and Treatment Methods...
- H Health and Medicine How to Treat the Flu: A Comprehensive Guide...
- O Other What is a Disk Emulsifier and How Does it Work?...
- F Family and Home What does a newborn need?...
- F Family and Home Choosing the Right Car Seat for Your Child: Tips and Recommendations...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- C Computers and Internet How to Get Rid of Spam in ICQ?...
- A Art and Culture Who Said The Less We Love a Woman, the More She Likes Us ?...
- F Family and Home How to Get Rid of Your Neighbors?...
Answers on questions: Mathematics
- M Mathematics The slope of the line shown below is 1/2 Someone Please Help Me...
- M Mathematics Find the distance between the two points (4,-5) and (-1,7) in units...
- M Mathematics Circle two addends to add first. write the sum 7,3,3...
- M Mathematics You are making festive tablecloths for to similar rectangular tables.the first table cloth measures 48inches wide and 72inches long if you want to make the second table cloth 30iches...
- M Mathematics Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6....
- M Mathematics How do you label vertices on an image figure?...
- M Mathematics Melanie cuts a rectangle out of a piece of scrap paper as shown. she wants to calculate the angle measure of the piece that is left over...
- M Mathematics You graph a triangle on a grid paper. the slopes of the sides are 0, -3, and undefined. what kind of triangle did you draw?...
- M Mathematics How many movies, m, can she download for $50?...
- M Mathematics Maureen has a net spendable income of $2,100 per month. she sets up the following transportation budget for herself. 3. transportation (15% - 20%) 350 a. car payments 150 b. gas/oil...
Ответ:
There are only 23=823=8 possible ways to arrange the genders boy/girl, with repetition. Since the probability of boy and girl are equal, the probability of each of these arrangements are also equal. We can therefore count the number of possible "good" answers, and divide by 8.
There are 3 possible ways to have 1 boy, that being "first/second/third child is boy", so the probability of exactly 1 boy is indeed 3838.
Having at most 2 girls is the opposite of having three girls, so since there are only one way of having three girls, there must be 8−1=78−1=7 ways of having at most two girls, so the probability of at most two girls is indeed 78
Ответ:
40
Step-by-step explanation:
3*17-11
51-11
=40
m is =40