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inysia [295]
3 years ago
14

A couple decides to keep having children until they have a girl, at which point they will stop having children. They also agree

to having a maximum of three children. The table below shows the probability distribution of X=, equals the number of children such a couple would have.
X=# of children 1 2 3
P(X), .5 .25 .25
Given that \mu_X=1.75μ
X
​
=1.75mu, start subscript, X, end subscript, equals, 1, point, 75 children, find the standard deviation of the children such a couple would have.
Round your answer to two decimal places.
\sigma_X\approxσ
X
​
≈sigma, start subscript, X, end subscript, approximately equals
children
Mathematics
2 answers:
STALIN [3.7K]3 years ago
7 0

Answer:

0.83 children

Step-by-step explanation:

Khan academy

Nesterboy [21]3 years ago
4 0

Answer:.83

Step-by-step explanation:

Khan academy

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a triangle has a height of 34 inches and an area of 391 square inches. Which equation can be used to find the base of the triang
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Answer:

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Step-by-step explanation:

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Which of the following ordered pairs are solutions to the system of equations below? y = 2x + 1 and y = 4x – 3 (1,4) (4,5) (2,5)
attashe74 [19]

Step-by-step explanation:

Hey there!

Given eqautions are:

y = 2x + 1......... (i)

y = 4x - 3...........(ii)

<em>Putting eqaution (ii) in eqaution (i), we get;</em>

4x - 3 = 2x + 1

<em>~ Keep like terms on same side.</em>

4x - 2x = 1+3

<em>~ Perform operations. ( +, -, *, /)</em>

2x = 4

x= 4/2

Therefore, X= 2.

<em>Putting the value of X in eqaution (i)</em>

y = 2x+1

y = 2*2+1

Therefore, y= 5.

Therefore, the ordered pair is (2,5).

<em><u>Hope</u></em><em><u> it</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

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