Gareth is choosing a car insurance plan. Based on his driving history and the traffic where he lives, Gareth estimates that there is a 15% chance he will have a car collision this year. In each plan, the insurance will cover the full cost of the collision after the deductible is paid.
Which of the plans detailed in the table is most likely to save Gareth the most money, based on expected value?
Plan
Deductible
Collision
Comprehensive
Premium Total
A
$300
$516
$240
$756
B
$500
$445
$210
$655
C
$1,000
$350
$184
$534
$2,500
D
$288
$412
$124

А. plan A
B. plan B
C. plan C
D. plan 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.