Choose an adult age 18 or over in the United States at random and ask, "How many cups of coffee do you drink on average per day?" Call the response X for short. Based on a large sample survey, a...

Extracted text: Choose an adult age 18 or over in the United States at random and ask, "How many cups of coffee do you drink on average per day?" Call the response X for short. Based on a large sample survey, a probability model for the answer you will get is given in the table.. 0| 1 Number 2 3 4 or more Probability 0.36 | 0.26 | 0.19 | 0.08 0.11 (a) Is this a valid finite probability model? No. This is not a valid finite probability model, because the probabilities are all greater than 0 and do not sum to 1. No. This is not a valid finite probability model, because each probability is between 0 and 1 and all sum to 1. Yes. This is a valid finite probability model, because the probabilities are all greater than 0 and do not sum to 1. Yes. This is a valid finite probability model, because each probability is between 0 and 1 and all sum to 1.


Extracted text: (b) Describe the event X < 4="" in="" words.="" the="" event="" x="">< 4="" is="" the="" event="" in="" which="" an="" individual="" drinks="" fewer="" than="" 4="" cups="" of="" coffee="" on="" average="" per="" day.="" the="" event="" x="">< 4="" is="" the="" event="" in="" which="" an="" individual="" might="" drink="" fewer="" than="" 4="" cups="" of="" coffee="" on="" average="" per="" day.="" the="" event="" x="">< 4="" is="" the="" event="" in="" which="" an="" individual="" might="" drink="" more="" than="" 4="" cups="" of="" coffee="" on="" average="" per="" day.="" o="" the="" event="" x="">< 4="" is="" the="" event="" in="" which="" an="" individual="" drinks="" more="" than="" 4="" cups="" of="" coffee="" on="" average="" per="" day.="" what="" is="" p(x="">< 4)?="" (enter="" your="" answer="" rounded="" to="" two="" decimal="" places.)="" р(x="">< 4) — 4)="">