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2 years ago

Can someone please help me with the problems that aren't done please ASAP

Mathematics

2 answers:

Norma-Jean [14]2 years ago

4 0

Number 2. You first need to conver those two fractions to decimals to so 3/5 is 0.60 and 1/4 is 0.25 so this is the order: 1/4 , 0.4 , 0.55 ,3/5

Zanzabum2 years ago

3 0

I believe #8 would be 0.6, and #10 would be 65%.

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1 year ago

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anzhelika [568]

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2 years ago

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2 years ago

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Answer:

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2 years ago

Suppose a family has three children of different ages. We assume that all combinations of boys and girls are equally likely. (a)

Ivan

Answer:

a) There are 8 possible combinations and each probability is 1/8.

b) The probability that it is a boy given that there are two girls is 3/8

Step-by-step explanation:

a) The sample space is given by:

BBB (3 boys)

BBG (Boy, boy, girl)

BGB (Boy, girl, boy)

BGG (Boy, girl, girl)

GBB (girl, boy, boy)

GBG (girl, boy, girl)

GGB (girl, girl, boy)

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The probability of each combination is the same:

P(BBB)=P(B∩B∩B)= $\frac{1}{2} \frac{1}{2} \frac{1}{2}=\frac{1}{8}$

2) There are three possible combinations in which there are 2 girls and 1 boy:

BGG, GBG, GGB

So the probability is given by:

P(BGG ∪ GBG ∪ GGB)= $\frac{1}{2} \frac{1}{2} \frac{1}{2}+\frac{1}{2} \frac{1}{2} \frac{1}{2}+\frac{1}{2} \frac{1}{2} \frac{1}{2}=\frac{3}{8}$

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2 years ago