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pishuonlain [190]
2 years ago
6

Find the probability of a couple having at least one boy when a couple has three children

Mathematics
2 answers:
elixir [45]2 years ago
8 0

Answer:

7/8

Step-by-step explanation:

assuming the probability of getting a boy and girl is 50 50,

(1/2)^3=1/8

1-1/8=7/8

gulaghasi [49]2 years ago
7 0
If you have one child you either have a boy or girl can you tell me the chance of having a boy
I am asking this to have an understanding of what you know
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△ABC is a right triangle with right angle at ∠B .
GuDViN [60]
We can use the tangent function to find the value of angle C.

tan ∠C = 29/38
tan ∠C = <span>0.76315789473

Now we will do inverse of tangent on both sides.

</span>∠C ≈ 37°
<span>
Hope this helps :)</span>
7 0
4 years ago
A suburban high school has a population of 1376 students. The number of students who participate in sports is 649. The number of
Afina-wow [57]

108 / 1376 is the probability that a student participates in both sports and music.

<u>Step-by-step explanation:</u>

It is given that,

A suburban high school has a population of 1376 students.

  • Let the event A be the no.of students participated in sports.
  • Let the event B be the no.of students participated in music.

The number of students who participate in sports is 649.

The number of students who participate in music is 433.

<u>To find the probability of event A (sports) :</u>

P(sports) = No.of students participated in sports / Total students.

⇒ 649 / 1376

∴ P(A) = 649 / 1376

<u>To find the probability of event B (music) :</u>

P(music) = No.of students participated in music / Total students.

⇒ 433 / 1376

∴ P(B) = 443 / 1376

From the question, we know that the probability that a student participates in either sports or music is 974 /1376.

∴ P(A∪B) = 974 / 1376

<u>To find the probability that a student participates in both sports and music :</u>

The formula used here is,

P(A∩B) = P(A) + P(B) - P(A∪B)

⇒ 649 / 1376 + 433 / 1376 - 974 /1376

⇒ 108 / 1376

∴ P(A∩B) = 108 / 1376

5 0
3 years ago
5 2/4 - 4 3/4 = with steps
Natasha_Volkova [10]

Answer:

Step-by-step explanation: concert to Fractions. 22/4 - 19/4 = 3/4

4 0
3 years ago
In 2010, the estimated population of Los Angeles was 3.79 × 106 people. The population of California that same year was about 9.
Olegator [25]

Answer:

The approximate population of the state of California in 2010 was 37,293,600\ people

Step-by-step explanation:

Let

x----->the estimated population of Los Angeles in 2010

y----->the estimated population of the state of California in 2010

we know that

y=9.84x ------> equation A

we have

x=3.79*10^{6}\ people

Substitute the value of x in the equation A and solve for y

y=9.84(3.79*10^{6})=37.2936*10^{6}\ people

37.2936*10^{6}=37,293,600\ people

3 0
3 years ago
Read 2 more answers
Kevin spent 70% of his money to buy a bike. if the bike cost $280 how much did he have?
victus00 [196]
I think he had 310$ but idk
5 0
4 years ago
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