At 298 K, liquid A (solute) forms an ideal solution with liquid B (solvent). The following graph is obtained for this solution.
Identify the correct statements about this graph:
I) x-axis represents the mole fraction of A
II) Point Z represents the vapour pressure of pure solvent
III) x-axis represents the mole fraction of B
If the probability distribution of a random variable X is as follows, then the mean of X is
X = xi | -1 | 0 | 1 | 2 |
P(X = xi) | k3 | 2k3 + k | 4k - 10k2 | 4k - 1 |
The mean deviation about the mean for the following data is
Class Interval | 0--2 | 2--4 | 4--6 | 6--8 | 8--10 |
Frequency | 1 | 3 | 4 | 1 | 2 |
$\left( 1 + \sqrt{5} + i \sqrt{10 - 2\sqrt{5}} \right)^5$