Question

A NUMBER IS SELECTED AT RANDOM FROM THE SET (1,2,3,4,5,6,7,8,9,10). LET 'A' BE THE EVENT THAT A NUMBER GREATER THAN 6 IS SELECTED AND 'B' BE THE EVENT THAT A 'SQUARE' IS SELECTED.

a) list the sample space.
b) list the events A and B
c) list A 'U' B
d) find Pr (A)
e) find Pr (A 'U' B)

HELP ME PLEASSSSE.​

Answer 1

Explanation:

a) sample space = 10

I.e the total number of possible outcomes

b) A = {7,8,9,10 }

B = {4,9

c) A U B = {4,7,8,9,10}

d) pr (A) = no of events in A÷ total sample space

pr (A) = 4/10

=2/10

e) pr( A U B) = 5/ 10

= ½