island × php?id-4897056 Jump to. tivities and Due Dates>HW4-Probablity The Study

Question

island × php?id-4897056 Jump to. tivities and Due Dates>HW4-Probablity The Study of Randomness Hint Resources Give Up? Suppose that a survey is taken of a sample of Portuguese parents with at lcast one child under the age of 20 living at home. The parents are asked to report the number of days per week, X, in which they have family dinner at home. Identify which of the tables are valid probability models for X PX)-0.20 0.15 0.15 0.15 0.15 0.15 0.15 0.15 0 P(X) 0.05 0.10 0.20 0.00 0.20 0.10 0.20 0.15 0 P(X) 0 10 10 10 10 10 25 25 P) 0.10 0.15 020 0.25 0.30 0.35 0.40 0.4S PX) 0.125 0.125 0125 0.125 0.125 0.125 0.125 0.125

Explanation / Answer

There are two tables which are valid probability models for X . These two tables are given below :

i )  

ii )  

Reason : The sum of the probabilities in the tables is 1 .

X P ( X ) 0 0.05 1 0.10 2 0.20 3 0.00 4 0.20 5 0.10 6 0.20 7 0.15 Total 1

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.