Question

Help please?!

Answer 1

@texaschic101

Answer 2

300 people under 40
100 exercise regularly and 200 do not
10% of 100 with high blood pressure = 10
15% of 200 with high blood pressure = 30

300 people over 40
200 exercise regularly and 100 do not
30% of 200 with high blood pressure = 60
35% of 100 with high blood pressure = 35

rate of high blood pressure of those who exercise = 70/600 = .1166 = 11.66%
rate of high blood pressure of those who do not exercise = 65/300 = .2166 = 21.66%

you might need a second opinion on this, because I am not sure if I did it correctly. My math does not equal the math to the problem. I have to say D.

Answer 3

@timo86m ...can you please check this out

Answer 4

@oldrin.bataku ....please help

Answer 5

@Luigi0210 ...can you help

Answer 6

did I do the math right ?

Answer 7

70/300=23.3
Everything is given.
It is B
you have not to calculate anything, only you have to select one.

Answer 8

the basic answer is there are more people who exercise and they are over 40

the people who are over 40 and that exercise are probably doing so because of health conditions (probably blood pressure as one main condition)

Answer 9

so this means that the "exercise" group is probably overrepresented by people who are over 40, which means that the results are skewed

Answer 10

in other words people who regularly excersise are older

Answer 11

oh...I see my mistake....it is not 70/600 it is 70/300.....

Answer 12

yes more or less, that's why the exercise group has a higher rate of high blood pressure

Answer 13

it is B then

Answer 14

older people are more conscious of health may be due to old age or have health problems

Answer 15

0_o

Answer 16

when it should be a case where those who exercise would have lower rates of high blood pressure

Answer 17

thanks jim and surjithayer....I would have given the wrong answer

Answer 18

yw

Answer 19

Thanks everyone :)

Answer 20

Just to be sure again its b

Answer 21

yes

Answer 22

I have absolutely no idea how to do this

Answer 23

Expenses per month :-
Rent =1090 $
Groceries(90*4) = 360 $
Utilities = 110 $
(Health+Car)insurance = 125 $ (340+410=750/6=125)
Gasoline (25*4) = 100 $
Miscellaneous = 350 $
Phone = 95 $
Total =
Find total and subtract from salary

Answer 24

2230

Answer 25

The salary 2100

Answer 26

ans is -230

Answer 27

@surjithayer ok but, just so i understand, Total is 2230 so then what do we subtract?

Answer 28

2230-2100=230

Answer 29

2100-2230=-230

Answer 30

Income=salary
Expenditure
balance=Income-expenditure