A couple plans to have no more than three children, and they will keep having children until they have a girl. So, if their first child is a girl, they will stop and have only one child. However, if their first child is a boy, they will try again and have a second child. As it turns out, the probability of having a boy is slightly greater than having a girl. Here is the probability distribution for the number of boys the couple could have. Boys 0 boys 1 boy 2 boys 3 boys Probability 0.490 0.250 0.127 0.133

What is the expected number of boys the couple will have? (Recall: the expected value is the mean). 0.903 1.5 0.228

0.903.

Step-by-step explanation:

Okay, from the question we are given the following information or data or parameters:

''couple plans to have no more than three children, and they will keep having children until they have a girl. So, if their first child is a girl, they will stop and have only one child"

Additionally, from the question we are given that; ''However, if their first child is a boy, they will try again and have a second child".

Also, the probability distribution is given as Boys 0, boys 1 , boy 2, boys 3 boys with Probability 0.490, 0.250, 0.127, 0.133 respectively.

That is, we now have:

Number of boys × probability.

Boys 0 = 0 × 0.490 = 0.

Boys 1 = 1 × 0.250 = 0.250.

Boys 2 = 2 × 0.127 = 0.254.

Boys 3 = 3 × 0.133 = 0.399.

The addition of the products for each Number of boys × probability gives us the expected value. That is to say;

0 + 0.250 + 0.254 + 0.399 = 0.903 = mean.

180

step-by-step explanation:

the camry sales+accord sale=828,000. to make it so the two numbers are 18 thousand apart and still equal 828,000, you first need to find out what half of 828,000 is. 828,000/2=414,000. for the two numbers to equal 828,000, you have to add the same amount as you subtract from the middle. in this case, the number is 9,000 because it's half of 18,000. to equal 828,000, you have to add 9,000 to 414,000 for the camry and subtract 9,000 from 414,000 for the accord. 414,000+9,000=423,000.

414,000-9,000=405,000.

423,000+405,000=828,000.

423,000-405,000=18,

hope it