The value of such that the system of equations 2x - y - 2z = 2; x - 2y + z = - 4; x + y + z = 4, has no solution, is
3
1
0
- 3
Let
Then, the value of is
1/3
1/9
1/81
0
B.
1/9
We have,
If the letters of the word 'PROBABILITY' are written down at random in a row, then probability that two B's are together, is
A fair coin is tossed-at a fixed number of times. If the probability of getting exactly 3 heads equals the probability of getting exactly 5 heads, then the probability of getting exactly one head is
1/64
1/32
1/16
1/8