Your class has to line up according to birthdays to complete an activity and in doing so you discover that of the 35 people in the class, four of them have the same birthday. You want to
find out if this is unusual so you conduct a simulation and repeat it 50 times to see how many
times 4 people have the same birthday. The results are shown in the dot plot. Is your class
unusual? Explain
A)
B)
You don't know. You can not use a simulation to see if
experimental results are typical.
Their results were not typical. None of the simulations
had four people with the same birthday,
Their results were typical. There were a few
simulations where four people had the same birthdays.
Their results were not typical. Even though there were
a few simulations with four people having the same
birthday the majority did not
D)

In a study of the relationship between socio-economic class and unethical behavior, 129 university of california undergraduates at berkeley were asked to identify themselves as having low or high social-class by comparing themselves to others with the most (least) money, most (least) education, and most (least) respected jobs. they were also presented with a jar of individually wrapped candies and informed that the candies were for children in a nearby laboratory, but that they could take some if they wanted. after completing some unrelated tasks, participants reported the number of candies they had taken. it was found that those who were identiď¬ed as upper-class took more candy than others. in this study, identify: (a) the cases, (b) the variables and their types, (c) the main research question, (d) identify the population of interest and the sample in this study, and (e) comment on whether or not the results of the study can be generalized to the population, and if the ď¬ndings of the study can be used to establish causal relationships.