Answer:
A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.
Step-by-step explanation:
hope this helps
plz mark brainliest
have a nice day
Answer:
0.75
Step-by-step explanation:
9/12 equals 3/4 which is 0.75
The y intercept is 40 and it means that at zero hours you have a score of 40(basically where you start out )
A triangle's total angle equals 180 degrees. so put all the other values together and then subtract from 180 to solve for x
