Скачать или смотреть MTE-11 (probability and statistics) Solved IGNOU assignment 2020 (question no. 1)

1- State which of the following statements are True and which are False. In case of the false statement, give the correct statement:. (10)

i) The probability of any event is always a proper fraction.

ii) with usual notations, show that
Cov (aX + bY,cX + dY) = acVar(X) + bdVar(Y) + (ad + bc)Cov( ,X Y)

iii) In the chi-square test of goodness of fit, if the calculated value of 2
χ is zero then the
fit is a bad fit.

iv) For binomial distribution, Mean = Mode = Median.

v) Mean lies between median and mode.

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