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ad-work [718]
4 years ago
15

a recently married couple are planning to have four children. They are equally likely to have a boy as well as a girl. What is t

he probability that they will have three boys and one girl?
Mathematics
1 answer:
Taya2010 [7]4 years ago
8 0

Answer:

0.25

Step-by-step explanation:

Given that a recently married couple are planning to have four children. They are equally likely to have a boy as well as a girl.

Let X be the no of boys the couples have.  X has two outcomes with p = 0.5

X is binomial with n = no of trials = 4 and p =0.5

the probability that they will have three boys and one girl

=P(X=3)\\=4C3(0.5)^3(0.5)\\= 0.25

Reqd prob = 0.25

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Answer:

No, its not

Step-by-step explanation:

The points of the image are not moved away from the center of dilation proportionally. I don't think anyway.

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3 years ago
Can I help someone with math
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3 years ago
Heart failures are due to either natural occurrences (87%) or outside factors (13%). Outside factors are related to induced subs
kkurt [141]

Answer:

(a) The probability is 9.49%

(b) The probability is 38.28%

Step-by-step explanation:

The probability that a failure is due to induced substance is calculated as a multiplication as:

(13%) * (73%) = 9.49%

Where 13% is the percentage of heart failures that are due outside factors and 73% is the percentage of outside factors that are due induced substances.

On the other hand, the probability that a failure is due to disease or infection is the sum of the probability that a failure is due to disease and the probability that a failure is due to infection.

Then, the probability that a failure is due to disease is calculated as:

(87%) * (27%) =  23.49%

Where 87% is the percentage of heart failures that are due natural factors and 27% is the percentage of natural factors that are due disease.

At the same way, the probability that a failure is due to infection is calculated as:

(87%) * (17%) =  14.79%

So, the probability that a failure is due to disease or infection is:

23.49% + 14.79% = 38.28%

4 0
3 years ago
a napkin has an area of 5 square inch . what is the side length of the napkin to the nearest hundredth of an inch?
mart [117]
The side length is 2.24 inches.

The area of a square is given by s²; we have
s² = 5

To find the value of s, we take the square root of each side:
√s² = √5
s = √5 = 2.236 ≈ 2.24
4 0
3 years ago
FIND THE RECIPROCAL OF 3 4/9
Bas_tet [7]

Answer:

9/31

Step-by-step explanation:

For a fraction, the reciprocal is just a different fraction, with the numbers "flipped" upside down (inverted). Any number times its reciprocal will give you 1.

3\frac{4}{9} * \frac{9}{31} = 1

8 0
3 years ago
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