In the figure ab is parallel to cd. bc is parallel to ae. angle abd measures (3x+4). angle bcd measures (6x-8). angle edf measures (7x-20). what is the degree measure of angle bcd?

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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.