Question

Fan + Medal

Answer 1

What is the probability that a person has a hemoglobin level above 11 if he is in the 25-35 age group?

Answer 2

0.125
0.298
0.344
0.356
0.687

Answer 3

looks like there is nothing in a that cell that corresponds to a level hemoglobin of above 11 for a 25-35 age group.

Answer 4

if there is nothing there, I would think that it is zero... but many it is just a typo or some other error?

Answer 5

I mean maybe, not many

Answer 6

Well zero isn't an answer choice

Answer 7

yes, but I don't know what an invisible number would be in this case.

Answer 8

ohh, you can find it, by setting
32+52+x=128
that would be the number of people in that group (I think)

Answer 9

how wouldn't I figure that out right away?

Answer 10

and then your P would be x/128, (for whatever you find the x to be)

Answer 11

0.344

Answer 12

yes.

Answer 13

Thank you!

Answer 14

I would typically find an exact value for the probability, but that works too. YW