questionr
Early access
Exams
Joint Entrance Examination
Mathematics
Probability
Question 272
Question 272 of 417
Easy
MCQ
A die is thrown;
A
A
A
: number
>
3
>3
>
3
;
B
B
B
: number
<
5
<5
<
5
. Find
P
(
A
∪
B
)
P(A\cup B)
P
(
A
∪
B
)
.
A
3
/
5
3/5
3/5
B
0
C
1
D
2
/
5
2/5
2/5
Check answer
Press A-D to select · Enter to check
Solutions · 1
Post your solution
Official solution
A
=
{
4
,
5
,
6
}
A=\{4,5,6\}
A
=
{
4
,
5
,
6
}
,
B
=
{
1
,
2
,
3
,
4
}
B=\{1,2,3,4\}
B
=
{
1
,
2
,
3
,
4
}
,
A
∪
B
=
{
1
,
…
,
6
}
A\cup B=\{1,\dots,6\}
A
∪
B
=
{
1
,
…
,
6
}
, so
P
(
A
∪
B
)
=
1
P(A\cup B)=1
P
(
A
∪
B
)
=
1
.
Answer the question to unlock
Previous
Next