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s344n2d4d5 [400]
3 years ago
8

A jar contains six red balls three green balls five white balls and seven yellow balls to balls are chosen from the jar with tha

t with replacement what is the probability that both balls chosen are green
Mathematics
1 answer:
Llana [10]3 years ago
3 0
6+3+5+7= 21 balls total
Choose 2 balls

21C2= 210 total number of ways you could have chosen the two balls

(nCr- n=total, r=choose)

Total green balls= 3

You choose first green ball out of 3

3C1

Then you choose second green ball out of the 2 green balls left

2C1

Multiply these two outcomes

3C1•2C1= 6

Probability=

6/210= 1/35
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Suppose a life insurance company sells a $240,000 one year term life insurance policy to a 25-year old female for $210. The prob
skelet666 [1.2K]

Answer:

$112.08 every year.

Step-by-step explanation:

Let's suppose a game in which we bet a certain amount of money ''A'' to a certain result and the probability of that result is ''p''. If the prize that we get is ''P'' therefore the expected value of gain is  :

E=p(P-A)+(1-p)(-A)=pP-A

Now,let's suppose that the female is ''betting on her death'' ⇒

P(she survives) = 0.999592

P(she doesn't survive) = 1 - 0.999592=4.08(10^{-4})

E(25-year old female) = 4.08(10^{-4}).(240000)-210=-112.08

The negative sign of E is important.It means that every year the 25-year old female will lose $112.08.

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5 0
3 years ago
Find the length of the missing side.
Sonja [21]
Hi! We’re going to use the pythagorean theorem to answer this.

3 + x^2 = 8
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8 0
3 years ago
Aaron is 5 years younger than Ron. Four years later, Ron will be twice as old as Aaron.
Hunter-Best [27]

Answer:

Aaron’s present age = x - 5 = 6 - 5 = 1

Step-by-step explanation:

Let Ron’s present age be x.  

Then Aaron’s present age = x - 5

After 4 years Ron’s age = x + 4, Aaron’s age x - 5 + 4.  

According to the question;  

Ron will be twice as old as Aaron.  

Therefore, x + 4 = 2(x - 5 + 4)  

⇒ x + 4 = 2(x - 1)  

⇒ x + 4 = 2x - 2

⇒ x + 4 = 2x - 2

⇒ x - 2x = -2 - 4

⇒ -x = -6

⇒ x = 6

Therefore, Aaron’s present age = x - 5 = 6 - 5 = 1

Hope this answer helps you :)

Have a great day

Mark brainliest

3 0
3 years ago
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Stells [14]

Answer:

1400 people

Step-by-step explanation:

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3 years ago
Choose the correct answer! ( sorry if it's hard :( )
4vir4ik [10]

Answer:

Step-by-step explanation:

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3 0
3 years ago
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