Answer:
Measure of central tendency is a value that represents a typical, or central, entry of a data set. The most common measures of central tendency are: • Mean (Average): The sum of all the data entries divided by the number of entries. ... The standard deviation measure variability and consistency of the sample or population.
Step-by-step explanation:
4 books
2(her gym clothes)+1(her lunch)=3
11(the total)-3(what we know)=8
8(the amount of room remaining)/2(the weight of each book)=4
4 books is the answer
The answer to your question is option "D"
