Use random-variable notation to represent the event.
-Suppose that two balanced dice are rolled. Let Y denote the sum of the two numbers. Use random-variable notation to represent the event that the sum of the two numbers is at least 11.
A) $\{ \mathrm { Y } 11 \}$
B) $\{ X + Y \geq 11 \}$
C) $( 5,6 ) , ( 6,5 ) , ( 6,6 )$
D) $\{ \mathrm { Y } \geq 11 \}$

Question

Use random-variable notation to represent the event.
-Suppose that two balanced dice are rolled. Let Y denote the sum of the two numbers. Use random-variable notation to represent the event that the sum of the two numbers is at least 11. 
A) $\{ \mathrm { Y } > 11 \}$
B) $\{ X + Y \geq 11 \}$
C) $( 5,6 ) , ( 6,5 ) , ( 6,6 )$
D) $\{ \mathrm { Y } \geq 11 \}$

Quizplus · Accepted Answer

The correct notation for the event that the sum of the two numbers is at least 11 is $\{ \mathrm { Y } \geq 11 \}$, where Y represents the sum of the two dice. This includes sums of 11 and 12, which are the only sums at least 11 possible with two dice.

Use Random-Variable Notation to Represent the Event {Y>11}\{ \mathrm { Y } > 11 \}{Y>11}

Use Random-Variable Notation to Represent the Event $\{ \mathrm { Y } > 11 \}$