Question

Help me figure this out?

Answer 1

This table is confusing and I don't know how I should be looking at it.

Answer 2

I've be doing 264/629 * 47/629 and other variations but it doesn't seem to work

Answer 3

is there any answer choices??

Answer 4

0.054
0.375
0.264
0.507

Answer 5

oh my bad i didn't see tha screen shot

Answer 6

it's alright lol

Answer 7

i see a pattern in ther tho

Answer 8

*there

Answer 9

264+47-311 and 63+11=74 and 25+4=29

Answer 10

@DJthereal what? LOL

Answer 11

lol nvm

Answer 12

@LynFran where did 111 come from??

Answer 13

oh ok..so u take tha negative total and tha A total and divide them??

Answer 14

what's going on? lol

Answer 15

@LynFran jus figured it out i think

Answer 16

it's not one of the answers and i actually wanted to learn how to do it because i had another problem that's similar lol

Answer 17

@jim_thompson5910 help?

Answer 18

oh i think i get it tho

Answer 19

i can try to explain it if u need me to

Answer 20

@jim_thompson5910 help?

Answer 21

@DJthereal yes please but i don't think she got it right because those aren't one of the options

Answer 22

i kno but she did give me a big hint

Answer 23

aaaah okay so can you explain it please?

Answer 24

yea jus give me like 5 or 6 minutes

Answer 25

how many people have a blood type that is A-positive?

Answer 26

264

Answer 27

and how many people have Rh-negative blood?

Answer 28

yea i tried 111/264 and i thought that wood be tha answer

Answer 29

I don't exactly know what Rh means but 111?

Answer 30

neither do I, but luckily we don't need to know the biology behind the problem

Answer 31

so there are 264+111 = 375 people who have either A-positive or Rh-negative blood types

Answer 32

this is out of 740 people total (bottom right corner)


We then divide

P(A-positive OR Rh-negative) = (# of people who have A-positive or Rh-negative)/(# total)

P(A-positive OR Rh-negative) = (375)/(740)

P(A-positive OR Rh-negative) = 0.50675675675676

P(A-positive OR Rh-negative) = 0.507

Answer 33

Aaaaah okay thank you!! Makes much more sense now

Answer 34

I'm glad it's making more sense

Answer 35

Helped me understand my other problem as well! Thank you!!

Answer 36

@jim_thompson5910 good job i was getting confused

Answer 37

Could you guys help me with one more problem that I can't wrap my head around?

Answer 38

I think it's Rolling a 4 or rolling an odd number??? But I don't know it's confusing

Answer 39

wat does mutually exclusive mean??

Answer 40

if two events are `mutually exclusive`, then that means that they CANNOT happen at the same time

example: flipping a heads AND a tails on the same coin

Answer 41

oh ok

Answer 42

so it's not c because 5 is a prime number

Answer 43

Yeah I'm pretty sure it's D

Answer 44

Thanks guys!!

Answer 45

yep 4 is even, so it's impossible to roll an even AND odd number at the same time