An experiment consists of casting a pair of dice and observing the number that falls uppermost on each die.
(a) determine the event that the sum of the numbers falling uppermost is less than or equal to 7. (select all that apply.)
(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)
(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)
(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)
(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)
(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)
(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

(b) determine the event that the number falling uppermost on one die is a 4 and the number falling uppermost on the other die is greater than 4. (select all that apply.)
(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)
(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)
(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)
(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)
(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)
(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

a)

b)

Step-by-step explanation:

Given : An experiment consists of casting a pair of dice and observing the number that falls uppermost on each die.

When two dice rolled once the outcome will be,

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)  

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6)  

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6)  

(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)  

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6)  

(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)  

(a) Determine the event that the sum of the numbers falling uppermost is less than or equal to 7.

Solution :

Favorable outcome are (the sum of the numbers falling uppermost is less than or equal to 7)

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5)

(3,1) (3,2) (3,3) (3,4)

(4,1) (4,2) (4,3)

(5,1) (5,2)

(6,1)

So, Favorable outcome = 21

Total number of outcome = 36

(b) Determine the event that the number falling uppermost on one die is a 4 and the number falling uppermost on the other die is greater than 4.

Solution :

Favorable outcome are (the number falling uppermost on one die is a 4 and the number falling uppermost on the other die is greater than 4.)

(4,5) (4,6) or (5,4) (6,4)

So, Favorable outcome = 4

Total number of outcome = 36

what graph

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,