3 years ago

What is the probability that a couple will have a girl a boy a girl and a boy in this specific order?

1 answer:

3 0

P(boy)=1/2
P(girl)=1/2
P(a girl, a boy , a girl and a boy)=1/2*1/2*1/2*1/2= 1/16
P(2 boys and 2 girls ) = 1/[4!/(2!*2!)] =1/6

hope this helps u

You might be interested in

Katherine needs to cut a piece of cardboard for an art project at school. She has four pieces of cardboard that she can cut from

Rasek [7]

Cut five inches to creat the least amount of unused cardboard.

3 0

3 years ago

Select the correct text In the table.

Yuri [45]

Answer:

-9-958

216

Step-by-step explanation:

add

3 0

2 years ago

Serena wants to solve the following system of equations in the most efficient way.

Marianna [84]

Answer:

Serina should have solved for x in the second equation because it has a coefficient of 1.

Step-by-step explanation:

we have

$2x+3y=18$ ----> equation A

$x+7y=31$ ---> equation B

we know that

To solve the system of equations in the most efficient way, solve for x equation B and then substitute the value of x in equation A

$x=31-7y$ ----> equation C

substitute equation C in equation A

$2(31-7y)+3y=18$

solve for y

$62-14y+3y=18\\11y=62-18\\11y=44\\y=4$

Find the value of x

substitute the value of y in the equation C

$x=31-7(4)=3$

The solution is (3,4)

therefore

Serina should have solved for x in the second equation because it has a coefficient of 1.

3 0

3 years ago

Read 2 more answers

the sum of Julio's and Charles's age is 44 years. seven year from now, Julio will be twice Charles's age. how old is each one no

Wewaii [24]

J + C = 44

J + 7 = 2C

I hope this helps. :)

3 0

3 years ago

Read 2 more answers

lukranit [14]

Answer:

12.56

Step-by-step explanation:

180/360×2×3.142×4

4 0

2 years ago