Question 1162384
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For the following problem use the table below to determine the probability and Leave Answers as Fractions

<pre>
Days exercising  0-1   2-3   4-5   6-7
Male Exercise     40    53    26    6
Female exercise   34    68    37    11
</pre>

Find the probability that the individual was a male
and exercised 2-3 days/week.

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<U>Solution</U>


<pre>
First,  I formatted the given part by an appropriate way to make it easy readable.


Next, I start my solution.


In the table, I find that cell, which relates to males exercising 2-3 days/week.


The number in the cell is 53.


The post does not say, UNFORTUNATELY, from which category the individual is randomly selected,

     // and it is a FAULT of the post //

but I believe and I will assume that the individual is randomly selected from the entire population of all men and women.


So, I calculate the entire population


    40 + 53 + 26 + 6 + 34 + 68 + 37 + 11 = 275.


My next step is to form this fraction  {{{53/275}}}.


It is your answer.
</pre>

Solved.


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As you see, &nbsp;all you need to do is to read the problem; &nbsp;to understand what they want and then to proceed accordingly.


There is nothing difficult in it &nbsp;(!)



\/\/\/\/\/\/\/


So, I answered the first question in the post.


Honestly, your post is a mess of the problem's questions and your trials,

so, it is difficult to separate questions from your thoughts . . . 


My I give an advice to you?


When you want to learn a new subject, do not post many questions in one post.


It ALWAYS works against you . . . under any circumstances . . .