# Hello Your Explanation On Math Problems Is Much Better Than A Previous Tutor Is

Hello,

Your explanation on math problems is much better than a previous tutor. Is it possible to receive assistance on the following questions directly from you?

Three students, Chris, Vlad, and Steve, are registered for the same class and attend independently of each other. If Chris is in class 80% of the time, Vlad is in class 85% of the time, and Steve is in class 90% of the time, what is the probability that at least two of them are in class on a randomly selected day?

Three cards are selected from a standard deck of 52 playing cards. If the first two cards are both spades, what is the probability that the third card is a spade?

Three cards are selected from a standard deck of 52 playing cards. If the first two cards are both spades, what is the probability that the third card is a spade?

Question 1:There can be 4 possibilities, “Chris and Vlad” or “Vlad and Steve” or “Chris and Steve” are inclass or all three in class.So required probability is= P(Chris and Vlad is…