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Research Methods and Bio-statistics Practice Test Questions
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Biostatistics (also known as biometry) are the development and application of statistical methods to a wide range of topics in biology. It encompasses the design of biological experiments, the collection and analysis of data from those experiments and the interpretation of the results.

Biostatistics are used in: Database design and management. Statistical consulting. Applied survival and longitudinal analysis. Design of clinical trials.

Research Methods and Bio-statistics Practice Test Questions
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25 Questions

1. The regression lines helps to find the __________
2. If two regression coefficients are 0.8 and 0.6 the value of the coefficient of correlation is __________
3. When the value of r=+1, the correlation is ____________.
4. Laws of ___________ science are perfect.
5. A bag contains 8 white and 4 red balls. Five balls are drawn at random. What is the probability that 2 of them are red and 3 white?
6. The area to the left of Z = 1.96 is ____________ .
7. When the value of r=-1, the correlation is _____________.
8. Coefficient of determination is ____________ .
9. When the regression lines are expressed in algebraic terms it is known as ____________ .
10. When the sample size n is less than 30 it is called ________ .
11. In discrete and continuous frequency distributions N= ___ .
12. The relative measure of standard deviation is called _______________ .
13. Diagrams are for _________________
14. Curve linear correlation is ________ .
15. A normal curve has x = 20 and ó = 1 0 . The area between X1 = 15 and X2 =40 is ____ .
16. Variance is the square of _____________ .
17. The collected data in any statistical investigation are known as ____________.
18. The standard deviation measures the absolute ___________.
19. When the total number of observations are divided by the sum of reciprocals of the numbers it is known as _________ .
20. Two events are said to be ________ when the outcome of one does not affect, and is not affected by the other.
21. The mean and variance of a poisson distribution is __________.
22. The data collected for the first time is called as __________ .
23. The best measure of central tendency is ______________.
24. ____________ are suitable for research reading.
25. _______ events are those in which the occurrence or non-occurrence of one event in any one trial affects the probability of other events in other trials.

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