People are arriving at a party one at a time. while waiting for more people to arrive they entertain themselves by comparing their birthdays. let x be the number of people needed to obtain a birthday match, i. e., before person x arrives there are no two people with the same birthday, but when person x arrives there is a match. find the pmf of x.

describing distributions is one of the key skills you’ll need to earn a high score on the ap statistics exam. if you need proof of this, just flip through some past exam questions, which can be found at the collegeboard website. you’ll notice that the first free response question is almost always a question requiring you to look at a graph and describe it.

step-by-step explanation: just trying to get points sorry : (

ur mom

step-by-step explanation:

step-by-step explanation:

*calories burned = (weight)(calorie factor)*

calories burned = 180 (0.65)

calories burned = 117

the calories he used up is 117, which is 65% of his weight.