I just posted this and only the first part was answered and explained, the second question has not explanation so not sure how they came to that answer and the third part was not answered at all please help

RStudio A card is drawn at random from a deck of cards. Find the probability of getting the King of Hearts - already answered with explanation

How many total attempts would be needed to crack a 5 digit passcode? answer no explanation

in Rstudio Generate 500 fair coin flips in R and show frequency of heads and tails with a bar graph. Not answered