The partially filled contingency table gives the frequencies of the data on age (in years) and sex from the residents of a retirement home. 60-69 70-79 Over 79 Total Male 1 9 5 Female 19 2 4 Total What is the probability that a resident is female ? Round your answer to three decimal places if necessary. a. 0.635 c. 0.62 b. 0.629 d. 0.625

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step-by-step explanation:

coins of silver or gold

step-by-step explanation:

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

it would be 198 people.

hope it