Most important biostatistics MCQ's
Biostatistics is a branch of statistics that applies statistical methods to a wide range of topics in biology.
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Most important Plant Taxonomy MCQ's
1. First step of an investigation is _________ .
A. collection of data.
B. presentation of data.
C. analysis of data.
D. explanation of data.
B. presentation of data.
C. analysis of data.
D. explanation of data.
Answer: collection of data
2. Diagrams are for _________________
A. the use of exports.
B. better quantitative picture.
C. better mental appeal
D. the use of imports.
A. the use of exports.
B. better quantitative picture.
C. better mental appeal
D. the use of imports.
Answer: better quantitative picture.
3. Skewness is positive when mean is ___________.
A. greater than mode.
B. less than mode.
C. equal to mode.
D. negative.
A. greater than mode.
B. less than mode.
C. equal to mode.
D. negative.
Answer: greater than mode
4. A grouped distribution can be represented by __________.
A. Frequency polygon.
B. Histogram.
C. Frequency curve.
D. Ogives.
A. Frequency polygon.
B. Histogram.
C. Frequency curve.
D. Ogives.
Answer: Histogram
5. The regression lines helps to find the __________
A. average of x and y.
B. average of x only.
C. average of y only.
D. the median of x and y
A. average of x and y.
B. average of x only.
C. average of y only.
D. the median of x and y
Answer: average of x and y
6. In a positively skewed distribution mean>median is ____________.
A. lesser than mode
B. equal to mode
C. greater than mode
D. none
A. lesser than mode
B. equal to mode
C. greater than mode
D. none
Answer: greater than mode
7. The mode of the following series is __________. 3,5,8,5,4,5,9,3.
A. 3.
B. 5.
C. 4.
D. 0.
A. 3.
B. 5.
C. 4.
D. 0.
Answer: 5
8. __________ is used to compare the variability of two or more than two series.
A. mean.
B. Standard deviation.
C. Coefficient of variation.
D. Mean deviation
A. mean.
B. Standard deviation.
C. Coefficient of variation.
D. Mean deviation
Answer: Coefficient of variation.
9. The spearman rank correlation coefficient is a___________ measure of rank correlation.
A. parametric
B. non-parametric
C. linear
D. non-linear
A. parametric
B. non-parametric
C. linear
D. non-linear
Answer: non-parametric
10. The regression equation of x on y is expressed as ___________.
A. y=a+b.
B. y=ab.
C. y=a+bx.
D. y = a/bx.
A. y=a+b.
B. y=ab.
C. y=a+bx.
D. y = a/bx.
Answer: y=a+bx
11. When the sample size n is less than 30 it is called ________ .
A. small sample test.
B. large sample test.
C. ANOVA.
D. none of these.
A. small sample test.
B. large sample test.
C. ANOVA.
D. none of these.
Answer: Small sample test
12. Print paper for the research report should be only on____ paper.
A. Mat.
B. Low quality glossy.
C. High-quality glossy.
D. Filter.
A. Mat.
B. Low quality glossy.
C. High-quality glossy.
D. Filter.
Answer: High-quality glossy.
13. In references if the author is a woman it is usual to spell her ____.
A. Name
B. First name
C. Surname
D. Name with initial
A. Name
B. First name
C. Surname
D. Name with initial
Answer: First name
14. The hypothesis is true but our test rejects it. It is known as ___________ .
A. Type I error.
B. Type II error.
C. wrong decision.
D. None of the above.
A. Type I error.
B. Type II error.
C. wrong decision.
D. None of the above.
Answer: Type I error
15. The word statistics seems to have been derived from the latin word____.
A. statistik
B. status
C. statista
D. statistil
A. statistik
B. status
C. statista
D. statistil
Answer: status
16. Statistics is most commonly used in ____________.
A. Maths.
B. Science.
C. Economics
D. Sociology.
A. Maths.
B. Science.
C. Economics
D. Sociology.
Answer: Economics
17. Statistics is the ____________ of estimates and probabilities.
A. Science.
B. Economics.
C. Sociology.
D. Social science.
A. Science.
B. Economics.
C. Sociology.
D. Social science.
Answer: Science
18. __________curve should begin and end at the baseline.
A. ogives.
B. frequency.
C. histogram.
D. none of the above.
A. ogives.
B. frequency.
C. histogram.
D. none of the above.
Answer: Histogram
19. Variance is the square of _____________ .
A. range.
B. quartile deviation.
C. mean deviation.
D. standard deviation
A. range.
B. quartile deviation.
C. mean deviation.
D. standard deviation
Answer: standard deviation
20. Decrease in one variable influences the decrease in other variable is _________.
A. multiple correlations.
B. simple correlation.
C. negative correlation.
D. positive correlation.
A. multiple correlations.
B. simple correlation.
C. negative correlation.
D. positive correlation.
Answer: positive correlation.