The frequency distributions are –
a) binomial,
b) poisson, c) normal, d) all of these.

Which of the following is the application of χ2 test?
a) Test of freedom,
b) Test concerning the variance of a normal distribution, c) Test of goodness of fit, d) all of the above.

χ2 is tested by –
a) Bordington,
b) C H Meyers, c) Prof. Chi-Square, d) Karl Pearson.

χ2 is a-
a) Mean square test,
b) Correlation test, c) Chi-square test, d) X-test.

Z-test is a-
a) student’s t-test,
b) Fisher’s Z-test, c) Fisher’s t-test, d) Student’s Z-test.

In a sample of 400 books, 172 were Economics books. Estimate the population proportion at 95% confidence levels –
a) 43% to 12%,
b) 47.8% to 38.1%, c) 9% to 15%, d) 12% to 20%.

Regression equation of x on y can be –
a) y = a + bx,
b) x = a + by, c) y = a + bx2 + cx d) x = a + b

While correlation analysis tests the …………… with which two or more phenomena covary, regression analysis measures the nature and extent of this relation, this enabling as to make prediction.
a) Closeness,
b) Realization, c) Separation, d) Validation.

It is often more important to find out what the relation actually is, in order to estimate or produce one variable, and the technique appropriate to such a case is called –
a) Correlation analysis,
b) Mean, c) Regression analysis, d) median.

Q. 1 Statements:
(a) all businessmen are wealthy.
(b) all wealthy people are hardworking. Conclusions: (i) All businessmen are hard working. (ii) All hardly working people are not wealthy

Q. 2 Using websites to pour out one's grievances is called:

Q. 3 In web search, finding a large number of documents with very little relevant information is termed:

Q. 10 Soils in the Mahanadi delta are less fertile than those in the Godavari delta because of:

Q. 4 The concept of connect intelligence is derived from:

Q. 5 Use of an ordinary telephone as an Internet appliance is called:

Q. 9 While all rivers of Peninsular India flow into the Bay of Bengal, Narmada and Tapti flow into the Arabian Sea because these two rivers:

Q. 6 . Video transmission over the Internet that looks like delayed
live casting is called:

Q. 7 Which is the smallest North-east State in India?

Q. 8 Tamilnadu coastal belt has drinking water shortage due to: