It is the same distance from the point A to CD
Answer:
x = 20
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
x² = 12² + 16² = 144 + 256 = 400 ( take the square root of both sides )
x = = 20
Answer:
34.1754 Miles per hour
Step-by-step explanation:
Answer:
I THINK I GOT IT!!! I think by 19 weeks (rounding) she will have to run 1 extra mile or 95 percent more!!!!!!!
Step-by-step explanation:Please do not blame me if its wrong i only thought about for like 1 min!
Answer:
As the sample size increases, the variability decreases.
Step-by-step explanation:
Variability is the measure of actual entries from mean. The less the deviations the less would be the variance.
For a sample of size n, we have by central limit theorem the mean of sample follows a normal distribution for random samples of large size.
X bar will have std deviation as
where s is the square root of variance of sample
Thus we find the variability denoted by std deviation is inversely proportion of square root of sample size.
Hence as sample size increases, std error decreases.
As the sample size increases, the variability decreases.