Marcus recorded the high temperature each day for a week. the daily high temperatures in degrees fahrenheit were: 68,74,66,78,72,80, and 74 which best describes what 74 represents in this data set? a. median only b. mean and mode c. median and mode d. mode only

The answer is C. median and mode.

Step-by-step explanation:

First, we have to ensure that the list of the set of data is from least to greatest: 66, 68, 72, 74, 74, 78, 80 .

The mean = (66 + 68 + 72 + 74 + 74 + 78 + 80) ÷ 7 = 512 ÷ 7 = 73.14 . (Note that the mean is not equal to 74.)

The median = middle number when the set of data is listed in order from least to greatest = the fourth number = 74.

The mode = the temperature that occurred the most = 74 .

These results prove that the median and mode best describe what 74 represents in the data set, because they are the same value.

marco saved more.   he saved $35 more.

step-by-step explanation:

1+2+3+4+5+6+7+8+9+10 = 55

2*10 = 20

55-20 = 35