EyosiasZewdu EyosiasZewdu

16-05-2020
Mathematics

contestada

If 99 people have a mean incame of doolar 400, how much is the mean incame increased by the addition of a woman with an incame of doolar 1500

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salatulmaghrib salatulmaghrib

16-05-2020

The new mean will be (400*99+1500)/100=411
The mean increased by 11.

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devishri1977 devishri1977

16-05-2020

Answer:

Step-by-step explanation:

Mean income of 99 people = $ 400

Sum of income of 99 people = 400 * 99 = $ 39600

Income of a woman = $ 1500

Income of 100 people = 39600 + 1500 = $41100

Mean of 100 people = 41100/100 = $411

411 - 400 = $11

Mean income increases by $11

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