The retirement ages of a group of steel workers are recorded below. Construct a histogram with 4 classes using Microsoft Excel, Google Sheets, or GeoGebra. You will upload the graph in the next question. {64,60,57,63,61,64,50,62,60,56,53,62,54,60,64,53,61,58,60,64,57,56,64,61,63} Use the data to answer the following questions. What is the population mean of the data? Answer 1 Question 1 = Answer 2 Question 1 What is the population variance? Answer 3 Question 1 = Answer 4 Question 1 (Round to four decimal places. Note: s^2 means s2) What is the population standard deviation? Answer 5 Question 1 = Answer 6 Question 1(Round to four decimal places) The data is Answer 7 Question 1. According to Chebyshev's theorem, at least 88.9% of the data falls between approximately 47.62 and Answer 8 Question 1. (Round to the nearest hundredth.)