Answer:
The group that has greater value of relative dispersion is the smokers group, as the coefficient of variationof their data is bigger than the coefficient of variation of the non-smokers group data.
CV smokers: 0.387
CV non-smokers: 0.234
Step-by-step explanation:
We will calculate the relative dispersion of each data set with its coefficient of variation (ratio of the standard deviation to the arithmetic mean).
Then, first we calculate the mean and standard deviation for the smokers data:
Mean: 43.7
Standard deviation: 286.5
The mean and standard deviation for the non-smokers is:
Mean: 30.3
Standard deviation: 50.9
Now, we can calculate the coefficient of variation:
CV smokers:
CV non-smokers:
Y = -3. Yeah this can be hard at first but you'll get the hang of it, its simple once u have that clicking moment.
What the goal is is to get y by itself, right? Then u would have y = blank and thats what u need because ur trying to find y. So to get y alone and have that y = blank, u can "balance the equation." That means if u add something on the left side of the equation (before the equal sign) u have to add it to the right. Same with subtraction. In this equation, u would subtract 6 from both sides so there would be no 6 left on the left and a 6 on the right instead. ask me questions if u need more help! :)
Step-by-step explanation:
Given
slope (m) = - 2/ 3
Y-intercept (c) = - 4
Now writing in Slope intercept form
y = mx + c
y =( - 2/3) x - 4
Hope it will help :)
You probably made a typing error in writing s = -3 and wrote s - = 3 instead.
The given expression is:
Substituting the given value of s in the previous equation, we get:
Thus the value of given expression becomes -46 for s = -3