Define probability and prove the addition and multiplication theorems of probability.
What is the probability that both balls drawn will be of (i) black colour (ii) white colour, if two balls are drawn randomly one by one without replacement from a bag containing 5 white and 3 black balls?
What do you understand by measure of central tendency?
Explain the various measures of dispersion and give their merits, demerits and uses.
Solve the equations of two regression lines obtained in a correlation analysis and calculate regression coefficients, correlation coefficient, and mean values.