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PilotLPTM [1.2K]

2 years ago

8

A jar contains 18 gold coins, 36 rose gold coins, 9 silver coins, and 27 copper coins. What is the probability of randomly selec

ting a copper coin from the jar?

1 answer:

nignag [31]2 years ago

5 0

The answer 63% I worked it out

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Is m = 1 a solution to the inequality below?<br> 55<br> m<br> > 26<br> yes<br> no

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Step-by-step explanation:

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1 year ago

A sales analyst listed the probabilities of profits and losses in dollars for a certain company. Find the mean for the probabili

kakasveta [241]

Answer: The mean for the probability distribution will be 69.25.

Explanation:

Since we given that

$At\ x_1= -500 ,P(x) = 0.076\\$

$At\ x_2= -250,P(x)= 0.191\\$

$At\ x_3=0, P(x)= 0.265\\$

$At\ x_4=250 , P(x)= 0.316\\$

$At\ x_5=500 , P(x)= 0.152\\$

As we know the formula for expectation of x i.e. known as mean for the probability distribution,

$E(x)=x\sum_{1}^{5} P(x)$

So, we apply this formula in our case,

$-500\times 0.076+(-250)\times 0.191+0\times 0.265+250\times 0.316+500\times 0.512=69.25$

$\mu = 69.25$

Hence, the mean for the probability distribution will be 69.25.

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3 years ago

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Name two ways you can figure out an area of a composite figure.

TiliK225 [7]

Answer: they contain valuable items and are very interesting

Step-by-step explanation:

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3 years ago

4(2x + 3) in the simplest form

Aleonysh [2.5K]

Answer: 8x+12

Step-by-step explanation:

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4(2x+3)

(4)(2x)+(4)(3)

8x+12

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2 years ago

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5 + 7) + 3 = 5 + (7 + 3)

Liula [17]

Answer:

Step-by-step explanation:

Associative property

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