Question

Can you help me

Answer 1

whats the question :)

Answer 2

From the table above:
If the researcher was to choose 2 people at random (assume when a person is chosen, they are not eligible to be chosen again), what is the probability that the 1st person she chooses lives in Los Angeles and the 2nd person she chooses lives in Los Angeles?

A. 6/20 or 30%
B. 5/19 or 26.3%
C. 30/380 or 7.9%
D. 36/400 or 9%
E. 30/400 or 7.5%

Answer 3

I'm sorry but This Question I dont get

Answer 4

But I might have someone who can help you with this question

Answer 5

@hartnn

Answer 6

so both the person she chooses need to live in Los Angeles?

Answer 7

Out of 20 total people,
how many of them live in Los Angeles??

Answer 8

1st 6 , right?

so probability of choosing 1 person out of 20 who lives in Los Angeles is just
6/20.

Answer 9

now we have 19 others left,
and 5 people living in Los Angeles left.

Answer 10

so probability of again choosing a person living in Los Angeles = 5/19

Answer 11

multiply these 2 answers to get your final answer :)

Answer 12

sorry, i thought you left, otherwise i would have waited for your responses...

Answer 13

30/380

Answer 14

\(\huge \checkmark \)

Answer 15

Yes it looks what way

Answer 16

But can it be reduced or no

Answer 17

No it cannot that I see

Answer 18

Yes but look at your options,
there is no need to reduce it.

Answer 19

my bad I was mistaken

Answer 20

From the same table:
If the researcher was to choose 3 people at random (assume when a person is chosen, they are not eligible to be chosen again), what is the probability that all 3 people she chooses will be over 50 years old?

Answer 21

total how many people are there with age more than 50 ?

Answer 22

6

Answer 23

is it 6/20*5/19*4/18

Answer 24

correct!

Answer 25

so 120/6840

Answer 26

the choices are these BTW.

A. 120/6840 or 1.8%
B. 120/8000 or 1.5%
C. 216/8000 or 2.7%
D. 216/6840 or 3.2%
E. 150/7200 or 2.1%

Answer 27

yeah, 1st one

Answer 28

I have one more, From the table above

If the researcher was to choose one person at random, what is the probability she would choose a person who lives in San Francisco or has experienced a major earthquake?