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Katarina [22]
3 years ago
11

Conditional probabilities

Mathematics
1 answer:
Svet_ta [14]3 years ago
3 0

Answer:

D) Of the 4 people who have a sister, 1 of them also has  a brother.

Step-by-step explanation:

P(B/A) indicates the probability of event B when event A has alredy occured.

Event A = The person has a sister.

Event B = The person has a brother.

So now P(B/A) means the probability of the person having sister who already have brother.

Hence choice "D) Of the 4 people who have a sister, 1 of them also has  a brother." is correct.


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a local parts shop buys a machine that costs $500,000. its value depreciates exponentially each year by 10%. what is the machine
jeka94
Hello!

Answer:

$295.295

Explanation:

Of the statement, we have that the price of the machine decreased 10% every year exponentially, so in the first year it real value drops to 90% of the costs. For 5 years, It can be expressed and simplified by the following equation:

We can't use that the percent drop as a percent itself, so we are going to divide 90% by 100%, and it will give us an entire number.

\frac{90}{100}=0,9 \\ \\ Value=Costs.(0.9)^{years}


By substituting we have:

Value=500000.(0.9)^{5}

Value: $295.245


Have a nice day!



8 0
2 years ago
Find the perimeter of a rectangle 12.5 cm. long and 3.5 cm wide
Anna [14]
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4 0
3 years ago
Read 2 more answers
Jack is playing a game. When a player wins 3 consecutive games, the player receives 10 bonus points and then the player’s total
Paladinen [302]
<span>The function can be described as

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4 0
3 years ago
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Alecsey [184]
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8 0
2 years ago
a cookie recipe yields 48 cookies calls for 2 cups of flour. a different cookie recipe yield 60 cookies calls for 3 cups. Are th
fenix001 [56]
No they are not.
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3 years ago
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