The standard deviation of a distribution is 5. The value of the fourth central moment, in order that the distribution be mesokurtic, should be :
Suppose owing to increased prices, a consumer reduces consumption of all commodities by 10% compared to the previous year. If IL and IP are the Laspeyres' and Paasche's price indices for the current year with the previous year as base, then
The probability that an urn containing 5 balls contains only white balls if the first two balls drawn from it were found to be white is :
If the trend equation fitted from a data on production (y in kg) of a fertilizer factory is 26y = 5335 + 624t, where time(t) has unit 1 year. Then monthly increase in production of fertilisers (in kg) is:
Let E and F be two events with P(E ) > 0, P(F|E) = 0.3 and P(E ∩ Fc ) = 0.2. Then P(E) equals:
The annual vehicles production (In lacs) in India is given in the pie chart.
If the annual production of motor cycle is 1.80 lacs, the annual production
