A researcher wanted to determine whether eating hamburgers for lunch increased the aggression of second graders during their afternoon play period. after feeding a group of 20 students hamburgers for lunch she observed that, on average, the students committed 2.5 aggressive behaviors during their afternoon play period. in this example, which of the following describes the sample?

A The 2.5 aggressive behaviors
B The 20 students the researcher observed
C All second graders
D All second graders who ate hamburgers for lunch

B: The 20 students the researcher observed

Step-by-step explanation:

The aim of the research was to determine whether eating hamburgers increased the aggression of second graders during their afternoon play period. The one that best described this sample is definitely the ones that the researcher chose for the basis of the research which are the 20 students because their reactions towards the hamburger justifies and gives the study direction

2/5

step-by-step explanation:

step-by-step explanation:

the options are kind of confusing. i can tell you what i see going on here when i look at the graph.

the class and exam medians are closely related, and it looks like the low outlier on the exam did pull the median lower. [tex][/tex]