Answer:
the first one i think
Step-by-step explanation:
True is the correct answer
Answer:
-8/13
Step-by-step explanation:
The slope of (-6,5) and (7,-3) is -8/13.
Answer:
it lies between 8 hours and 12 hours in a week
Step-by-step explanation:
Since in the question it is mentioned that the distribution consist of uni-modal, symmetric and bell shaped so here the empirical formual to be used for the mean and the standard deviation
Also the 68% would be fall within one standard deviation above and below the mean
Now
1 standard deviation below the mean is
= 10 - 2
= 8 hours
And, above the mean is
= 10 + 2
= 12 hours
Hence, it lies between 8 hours and 12 hours in a week
So if there is a negative, you would go backwards alll the way to 0 to enter the positives. So if its 167 and -49, the answer would be 118.