For this problem I found the mean however I cannot seem to find the standard deviation. I tried everything for the formula to adding, subtracting, multiplying, dividing but still no correct answer. Can someone please help and explain how you got the answer?

The american academy of pediatrics wants to conduct a survey of recently graduated family practitioners to assess why they did not choose pediatrics for their specialization. provide a definition of the population, suggest a sampling frame, and indicate the appropriate sampling unit.

Hi, can anyone show me how to do this problem? 100 points for this. in advance

Using the information in the customer order, determine the length and width of the garden. enter the dimensions. length: feet width: feet