Probablity is (desired outcomes)/(total possible outcomes)
total possible outcomes is 50
find the desired oucomes
les than 10
those ar
1,2,3,4,5,6,7,8,9
9 numbers less than 10
OR
multipule of 12
12,24,36,48
4 of them
9+4=13
13=total possible
13/50
C
Answer:
The 85% confidence interval is (0.2187, 0.2613).
Step-by-step explanation:
We have a large sample of size n = 830 Americans over 45. We have observed that 631 people don't smoke. Let p be the population proportion of Americans over 45 who smoke. An point estimate of p is 
and an estimate of the standard deviation of 
is 
= 0.0148. Therefore, because we have a large sample, the 85% confidence interval for the population proportion is given by 
where 
is the 7.5th quantile of the standard normal distribution, i.e., -1.4395. Therefore the 85% confidence interval is 
or equivalently (0.2187, 0.2613).
Answer:
3 and 4
Step-by-step explanation:
Maximum of area is when both length and width are equal
144/4=36 max area=36*36=1296
minimum of area is when width is 1 and length is half of<span> perimeter -1
</span> 144/2=72 72-1= 71 min area=71*1=71
1296-71=1225
