<span>It can be assumed that the sample mean would would be approximately normal by the mean distribution theorem. The mean distribution theorem states that a large enough sample size will have a distribution and mean approximately the same as the population mean. A sample of 250, half the size of 500, is of sufficient size to assume the distribution mean will be approximately normal like the population mean.</span>
Answer:
The following system of equation has no solution.
Step-by-step explanation:
since both of them are equal to y, set them equal to each other:
3x+1=3x+7
if you subtract both sides by 3x, you get 1=7. That is a contradiction, so this has no solutions.
Answer:
Area of a circle = 200.96 yd²
Step-by-step explanation:
Area of a circle = πr²
Radius, r = 8 yd
π = 3.14
Area of a circle = πr²
= 3.14 * (8 yd)²
= 3.14 * 64
= 200.96 yd²
Area of a circle = 200.96 yd²
Let angle be x, then
180 - x + 6 = 2x
3x = 186
x = 62
so the 2 angles are 62 and 118
