Question

1What happens to the curve when the standard deviation is increased? What does that do to the area under the curve?

Answer 1

Answer:

The answer is below

Explanation:

Z score is a score used in mathematics to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

$z=\frac{x-\mu}{\sigma}\\\\where\ x=raw\ score, \mu=mean,\sigma=standard\ deviation. \\\\For\ a\ sample\ size(n):\\\\ z=\frac{x-\mu}{\sigma/\sqrt{n} }$

The area under the curve is dependent on the z score. The higher the z score, the higher the area under curve and the lower the z score, the lower the area under curve.

a) The area under curve (z score) is inversely proportional to the standard deviation. If the standard deviation is increased, the z score decreases thereby reducing the area under the curve.

b) If the standard deviation is decreased, the z score increases thereby increasing the area under the curve.

Answer 2

Answer:

ayye

Explanation:

ayye tyo