Answer:
8 4/20
0.2
-8 1/10
Step-by-step explanation:
I only know of two measures of central tendency. Those are the median and the mean.
The mean is the average value of all numbers in the data set. It is adding up all the number and dividing it by the count of the data set.
The median is found as the middle most value of the data set that is arranged in ascending value.
In this scenario, it is better to use the MEDIAN in Cindy's report to the principal to portray her students in the most favorable manner. The median may either be a C or B. The F grade will not be considered.
The answer is 12.3 hours.
On the way to the beach, the family averaged 58 mi/h over 377 mi, so we take 377/58 to find the amount of time spent going to the beach. 377/58 = 6.5 hours.
On the way back, they averaged 65 mi/h over the same 377 mi, so we take 377/65. 377/65 = 5.8 hours.
6.5 + 5.8 = 12.3
