THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING

question 40

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING:
In a recent survey of 300 teenagers,62% of the teenagers indicated that they had been to a movie within the past month.75% of those teenagers who had seen a movie also had gone out to dinner in the past month,while only 64% of the teenagers who had not seen a movie had been out to dinner in the past month.Define the random variables as follows:
X = 1 if teenager had been to movie;X = 0 otherwise
Y = 1 if teenager had been out to dinner;Y = 0 otherwise
-Find the joint probability function of X and Y.

---

Definitions:

Fractures

Breaks in rock or mineral without the movement parallel to the surface of the break, often a result of stress exceeding the strength of the material.

Underground Lakes

Bodies of water that exist beneath the Earth's surface, often found in caves or formed by natural aquifers.

Porosity

A measure of how much of a rock is open space, which can hold water, oil, or gas.

Dry

indicates a lack of moisture or water content.