Which statement is true?

a. P(age between 25 and 35 years|hemoglobin level between 9 and 11) ≠ P(age between 25 and 35 years)
b. P(hemoglobin level between 9 and 11|age between 25 and 35 years) = P (hemoglobin level between 9 and 11)
c. P(hemoglobin level between 9 and 11|age between 25 and 35 years) = P(age between 25 and 35 years)
d. P(age between 25 and 35 years|hemoglobin level between 9 and 11) = P(hemoglobin level between 9 and 11|age between 25 and 35 years)
e. P(hemoglobin level between 9 and 11) = P(age between 25 and 35 years)

Question

Which statement is true?

a.  P(age between 25 and 35 years|hemoglobin level between 9 and 11) ≠ P(age between 25 and 35 years)
b. P(hemoglobin level between 9 and 11|age between 25 and 35 years) = P (hemoglobin level between 9 and 11)
c. P(hemoglobin level between 9 and 11|age between 25 and 35 years) = P(age between 25 and 35 years)
d. P(age between 25 and 35 years|hemoglobin level between 9 and 11) = P(hemoglobin level between 9 and 11|age between 25 and 35 years)
e. P(hemoglobin level between 9 and 11) = P(age between 25 and 35 years)

anonymous · Answer

attachment

amistre64 · Answer

what are your thoughts about it?  how do you process the information?

anonymous · Answer

Give me a crash course on how to do the problem, and you'll be my best friend. I simply have no clue what I'm looking at, quite frankly. I understand the calculations of the percentages. I am confused, however, by what the vertical bar means. For the record, I'm aware of my ignorance and embrace it. Haha!

amistre64 · Answer

well, the columns have to add up to the total underneath them, 

the rows add up to the totals to the right of them

this is how we fill in the numbers, the rest is just pulling number off the table

can you fill in the missing parts of the table?

amistre64 · Answer

the vertical bar is a notation for "given this event"

P(rain|sunday)  reads,  the probabilty, that it rains, given that it is a sunday.

P(A|B) reads,  the probability, that A happens, given that B is occuring.

amistre64 · Answer

its calculated as tho the given event is all that we are focused on.

the amount of (A) within (B), divided by the totality of (B)

anonymous · Answer

The blanks are 44 and 46; I knew that much based on a previous question. I should have added that beforehand. So to calculate P(age between 25 and 35 years|hemoglobin level between 9 and 11), what exactly do I do?

amistre64 · Answer

imagine putting all the people in the event:  hemoglobin level between 9 and 11,  into a single room.  How many people are there in the room?

amistre64 · Answer

what is the total of the second row?

anonymous · Answer

147

amistre64 · Answer

now, out of those people stuck in that room, how many are between 25 and 35 of age?

anonymous · Answer

128!

amistre64 · Answer

no, look at the row and the box that shows the desired subset.
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