Before getting to school mary had a few arons to run. mary has to walk 9 blocks to the library and 6 blocks to the museum before walking a finial of mary already walked 12 blocks how many more blocks must she walk before she arrives to the school?

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.