Asap! algebra 2

part b

in the section describing the survey methods, the report states, “for results based on the total sample of national adults, the margin of sampling error is ±4 percentage points at the 95% confidence level.” interpret the meaning of this statement in terms of the poll. use any statistic given in the report as an example to explain your interpretation.

part c

in the section describing the survey methods, the report states, “each sample of national adults includes a minimum quota of 60% cell phone respondents and 40% landline respondents.” do you think this is a good minimum quota for this survey? should it be lower or higher?

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.

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.