Fifteen percent of australians smoke. by introducing tough laws banning brand labels on cigarette packages, australia hopes to reduce the percentage of people smoking to 10% by 2018 (reuters website, october 23,2012). answer the following questions based on a sample of 240 australians.

a，show the sampling distribution of, the proportion of australians who are smokers.

b，what is the probability the sample proportion will be within ±0.04 of the population proportion?

c，what is the probability the sample proportion will be within ±0.02 of the population proportion?

use the power rule  

( a b ) n = a n b n

to distribute the exponent.

apply the product rule to  

3 x 2 y 3 . ( 3 x 2 ) 2 ( y 3 ) 2

apply the product rule to  

3 x 2 . 3 2 ( x 2 ) 2 ( y 3 ) 2

raise  

3

to the power of  

2 . 9 ( x 2 ) 2 ( y 3 ) 2 multiply the exponents in   ( x 2 ) 2

.

apply the power rule and multiply exponents,  

( a m ) n = a m n . 9 x 2 ⋅ 2 ( y 3 ) 2

multiply  

2   by   2 . 9 x 4 ( y 3 ) 2

multiply the exponents in  

( y 3 ) 2 .

apply the power rule and multiply exponents,  

( a m ) n = a m n . 9 x 4 y 3

⋅

2

multiply  

3   by   2 . 9 x 4 y 6

step-by-step explanation:

equal to

step-by-step explanation:

what "following statement"?

step-by-step explanation: