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Suppose there are 20 people in a room and the mean amount of cash held by these 20 people is $14.50 per person. If two people enter the room carrying $4.00 and $5.00 respectively, what does the mean amount of cash in the room become?

Respuesta :

FormerSpeedGenius

Answer:

Multiply 20 by 14.5 and you get the total number of cash, and when the two people enter, add 4 and 5 to that total number, giving you a new total, then divide that new total by 22 because there are now 22 people in the room.

Step-by-step explanation:

david8644

Answer:

$13,59

Step-by-step explanation:

The mean in statistics is what we´ve always known as average in simple math, so in order to calculate how does the mean change you first need to calculate the total amount of money in the room to later divide it by the number of people:

there are 20 people with a mean of 14.5 we multiply that:

20-14,5=290

We add the 9 dollars that the new two people are bringing in:

290+9=299

And we divide that by the new total of people, 22:

299/22= 13,59

So the new mean will be 13,59 dollars

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