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At a charity fundraiser, each female attendant donated $1,200 and each male attendant donated $800. If the average donation at the fundraiser was $900, what was the ratio of the number of female attendants to the number of male attendants.

Respuesta :

Using the mean concept, the ratio of the number of female attendants to the number of male attendants was of 3.

What is the mean?

The mean of a data-set is given by the sum of all observations in the data-set divided by the number of observations.

In this problem:

  • There were f + m donations.
  • The sum was of 1200f + 800m.
  • The average was of 900.

Hence:

[tex]\frac{1200f + 800m}{f + m} = 900[/tex]

1200f + 800m = 900f + 900m

100m = 300f

[tex]\frac{f}{m} = 3[/tex]

Hence the ratio was of 3.

More can be learned about the mean of a data-set at https://brainly.com/question/20640860

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