How can I find the answer by not using a calculator or by using Desmos ONLY ( please explain steps on desmos)

70 randomly selected students were asked the number of pairs of shoes they have. Let X represent the number of pairs of shoes. The results are as follows: # of Pairs of Shoes 5 6 8 9 10 12 13 Frequency 5 10 10 5 10 Round all your answers to 4 decimal places where possible. The mean is: The median is: The sample standard deviation is: The first quartile is: The third quartile is: What percent of the respondents have at least 6 pairs of Shoes? 8% of all respondents have fewer than how many pairs of Shoes