Answer:
A sample size of 1380 should be obtained.
Step-by-step explanation:
Minimum sample size:
The minimum sample size is of:
In which z is the critical value, related to the confidence level, E is the desired margin of error, 
and 
are the proportions.
99% confidence level
So 
, z is the value of Z that has a pvalue of 
, so 
.
Estimates of 22.6% male and 18.1% female from a previous year
This means that 
.
Within 3 percentage points, minimum sample size:
This is n for which 
. So
Rounding up:
A sample size of 1380 should be obtained.
Answer:
34 degrees
Step-by-step explanation:
considering the two lines are parallel:
(3x + 7) + (2x + 3) = 180 degrees
3x + 2x + 7 + 3 = 180 degrees
5x + 10 = 180
5x = 180 - 10
5x = 170
x = 170/5 = 34
the value of x = 34 degrees
Answer:
the answer is C mean absolute deviation
Solve for x. Isolate the x. Note the equal sign. What you do to one side, you do to the other. Do the opposite of PEMDAS.
First, multiply 3 to both sides
6(3) = ((x + 2)/3)(3)
18 = x + 2
Finally, isolate the x. Subtract 2 from both sides
18 (-2) = x + 2 (-2)
x = 18 - 2
x = 16
16 is your answer for x
hope this helps
40=4x then 45=4.5x solving "x" as 1 in per 10 pounds.
