The slope is -2/7. I hope that helps
Answer:
Option a
Step-by-step explanation:
Given two normal distribution samples
I group has 106 as mean and 8.5 as std deviation with sample size = 60
II group has 121 as mean and 6.3 as std deviation with sample size =38
We find mean difference =-15
For margin of error finding, we have to find the combined std error for the difference
Variance of difference = Sum of variances
STd error for difference = 1.50
Hence for 99% margin of error =2.58(1.50)
= 3.87
Answer:
The change in elevation is 20,744 ft
Step-by-step explanation:
Let
x -----> the lowest elevation in a region
y -----> the highest elevation in a region
we have that
x=-264 ft
y=+20,480 ft
We know that
To find out the change in elevation from the lowest elevation to the highest elevation, subtract the lowest elevation from the highest elevation (or find the difference in absolute value)
so
y-x
substitute the values

