What is the formula that relates circumference and radius? O A. C+ 2 = 271
O B. C = 27t/r
C. C = 27 Dr
O D. C = 2101

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.