STATISTICS??
a woman has 11 close friends. find the no. of ways can she invite 5 of them to dinner? in how many ways if 2 friends are married and will not attend separately? in how many ways of two of them are not speaking terms and will not attend together?
OH PLEASE!HELP ME ANSWER THIS. I KNOW THAT THE PROBLEM IS QUITE SIMPLE. BUT I’M HAVING A HARD TIME UNDERSTANDING IT.
CAN ANYONE HELP ME? PLEASE?
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