Indian Institute of Information Technology 2007 M.A Psychology annual model ths - Question Paper

69.    An urn contains 4 white and 3 red balls. Find the probability distribution of the

number of red balls In three draws one by one from the urn (1) with replacement. (Ill without replacement.

70.    a) Solve : ( D² - 1 ) y * cos 2x- 2 sin 2x.

OR

b) If "a 2~t +.3~j - 1c, ~i * - 2~t + 5lc. ~c * ~J - 3lc, verify that ax(2x c ) = ( a.t)lM a.t) t.