Answer:
b) 2/6
Step-by-step explanation:
0, 1/6, 2/6, 3/6, 4/6, 5/6, 1
Hope this helps!
Answer:
6 years
Step-by-step explanation:
let x = # of years
6 + 2x = 12 + x
x = 6
Answer:
a) 0.23
b) The 95% confidence interval for the population proportion is (0.1717, 0.2883).
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.

In which
z is the zscore that has a pvalue of
.
Point estimate
The point estimate is:

95% confidence level
So
, z is the value of Z that has a pvalue of
, so
.
The lower limit of this interval is:

The upper limit of this interval is:

The 95% confidence interval for the population proportion is (0.1717, 0.2883).
Answer:
0,4
1,6
2,8
3,10
Step-by-step explanation:
if x=0, 2*0+4=0+4=4
if x=1, 2*1+4=2+4=6
if x=2, 2*2+4=4+4=8
if x=3, 2*3+4=6+4=10