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Delvig [45]
3 years ago
11

Thanks, everyone for helping me so far so free point for an answer

Mathematics
2 answers:
zhannawk [14.2K]3 years ago
8 0

Answer:

UR WELCOME!

Step-by-step explanation:

MissTica3 years ago
4 0

Answer:ok

Step-by-step explanation:

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y=mx+b


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6 0
3 years ago
A couple plans to have children until they get a​ girl, but they agree they will not have more than three​ children, even if all
barxatty [35]

Answer:

a)Let X be number of children

X=1,2,3

P(X=1)= 0.47

P(X=2) = 0.2491

P(X=3) = 0.942923

b) 3.7970

c) 1.6232

Step-by-step explanation:

The complete question is:

A couple plans to have children until they get a​ girl, but they agree they will not have more than three​ children, even if all are boys. Assume that the probability of having a girl is 47.00​%. ​

a) Create a probability model for the number of children​ they'll have.

X=1,2,3

​P(X=1)=??

P(X=2)= ??

P(X=30=???

​(Round to four decimal places as​ needed

​b) Find the expected number of children.

E(X)= ???

​c) Find the expected number of boys​ they'll have.

Expected number of boys= ???

Solution:

Probability of a girl= 0.47

Probability of a boy= 0.53

a) P(X=1)= 0.47

P(X=2) = 0.47× 0.53= 0.2491

P(X=3)= 0.47× 0.53× 0.53 + 0.53× 0.53× 0.53

             = 0.942923

b) E(number of children)= 1× P(X=1) + 2 ×P(X=2) + 3 × (PX=3)

                                       = 3.796969

c) Y: number of boys

P(Y=1)= 0.53×0.47= 0.2491

P(Y=2) = 0.53×0.53×0.47=0.46375

P(Y=3)= 0.53× 0.53× 0.53= 0.148875

E(Y)= P(Y=1)×1 + P(Y=2)×2 + P(Y=3)×3

       = 0.148875×3 +0.46375×2+0.2491 ×1

      = 1.6232

5 0
2 years ago
Will give brainliest
SCORPION-xisa [38]

Answer: 1/7776

Step-by-step explanation: Decimal if needed:0.00012

Hope this helped

6 0
2 years ago
Find the solution of x- 13 =25
melisa1 [442]

x- 13 =25\\x=38

6 0
3 years ago
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Help plz............................. they keep saying show work​
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Answer:

4x10=40

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7^2=49

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40+49=89+10=99

99

6 0
2 years ago
Read 2 more answers
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