Yes, I know this doesn't belong in the math category. Yes, I've posted the same question 4 times due to people not giving me adequate responses. Also, 50 points. This is a two-part assignment and I can't exactly finish it due to not understanding a single thing other than the "balanced equation" part.
I already completed that, though. If you could help me with the last 2 questions, that'd be great.
First image is context.

Module 2 homework: descriptive statistics 40206 module 2: homework 56 randomly selected students were asked how many siblings were in their family. let x represent the number of pairs of siblings in the student's family. the results are as follows: # of siblings 1 2. 4 10 frequency 13 6 10 10 round all yeur 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 3 siblings? % 83% of all respondents have fewer than how many siblings?