cab you please help.. and if possible can you please send me a screenshot of the excel work so i can understand more.. thank you for your time

In a company, a machine produces parts. These parts have precise dimensions that must be respected. 1) After a first adjustment, a proportion of 30% of defective parts is observed. We examine five pieces chosen at random from the production. Let X be the random variable representing the number of defected parts among the. a) What is the probability law of X ? b) Calculate the mean and standard deviation of X. c) What is the probability that 2 of the parts are defective? d) What is the probability that there is at most one defective part? e) Determine the mode and calculate the corresponding probability. 2) After a second adjustment, the proportion of defective parts becomes 5%. We examine a batch of 100 pieces. a) Calculate the probability of not finding defective parts. b) Calculate the probability of getting two defected parts. c) Calculate the probability of obtaining less than three defective parts d) Determine the mode and the associated probability