Answer: 0.042
Step-by-step explanation:
Point estimate of the difference between the two population proportion 
:-
, where 
and 
are sample proportions.
Given : In 1991 survey , The proportion of adults were current smokers =25.6%
i.e. 
In 2003 survey , The proportion of adults were current smokers = 21.4%
i.e. =0.214
Then , the point estimate of the difference between the proportion of current smokers in 1991 and the proportion of current smokers in 2003 :-
Hence, a point estimate of the difference between the proportion of current smokers in 1991 and the proportion of current smokers in 2003= 0.042
Answer:
It make 6 circles in a minute.
Step-by-step explanation:
Given:
a ball travels in a complete circle every 10 seconds
i.e
one complete circle = time taken 10 seconds.
Two complete circle = time taken 20 seconds.
Three complete circle = time taken 30 seconds.
Four complete circle = time taken 40 seconds.
Five complete circle = time taken 50 seconds.
Six complete circle = time taken 60 seconds.
60 seconds = one minute.
∴ Six complete circle in one minute.
Answer:
3/15 in the simplest form is 1/5....
when you divide by 3 it gives 1/5.
Answer:
I
Step-by-step explanation:
Answer:
2^-4, 1/16, (1/2)^4
There is a rule with exponents, if you are dividing two exponents you subtract the first exponent from the other to simplify it, also meaning it's equivalent.
So in this case 5-9 = 2^-4
The others were found by evaluation.
