Robert is using the following data samples to make a claim about the house values in his neighborhood:

house value
a $250,000
b $275,000
c $300,000
d $267,000
e $250,000

based on the data, should robert use the mean or the median to make an inference about the house values in his neighborhood?
he should use the mean because it is in the center of the data.
he should use the median because it is in the center of the data.
he should use the median because there is an outlier that affects the mean.
he should use the mean because there are no outliers that affect the mean.

He should use the mean because there are no outliers that affect the mean.

Step-by-step explanation:

stops on an even number.

step-by-step explanation:

12: 00 p.m. to 7: 00 p.m. is a total of 7 hours.

4: 00 p.m. to 7: 00 p.m. is a total of 3 hours.

this means that from 4: 00 p.m to 7: 00 p.m. this represents 3/7 of what was lost from 12: 00 p.m. to 7: 00 p.m.

after knowing this, after doing 11,600 - 6,800 = 4,800

4,800 represents 3/7 of what was lost for 7 hours.

we then divide 4,800 by 3 which gets 1,600.

because we know that 1,600 represents 1/7 of how much water was lost, we just have to multiply by 7, which gets 11,200.   after adding 11,200 to how much water was left at 7: 00 p.m. which was 6,800. 11,200 + 6,800 = 18,000

this means that the pool originally had 18,000 gallons in the pool.

you can also check your work by doing 18,000 - 4(1600), which becomes           1800 - 6400 which gets you 11,600.