Statistics 01 — Agri Master Mind

Which one of the following is NOT a measure of central a tendency?
  • Mean deviation
  • Geometric mean
  • Median
  • Fashion
Which test is used to test the independence of two attributes/variables
  • t-test
  • Paired t-test
  • Chi-square test
  • Normal test
Good measure of central tendency is -
  • M
  • G.M.
  • Median
  • Mode
Which measure of dispersion is based on all the observations?
  • Range
  • Quartile Deviation
  • Mean Deviation
  • All the above
Classification according to measurement or quantity is called-
  • Qualitative classification
  • Quantitative classification
  • Both qualitative and quantitative classification
  • None of the above
Average used in open end classes is
  • M.
  • G.M.
  • Median
  • Mode
Mean deviation will be minimum when the deviations are taken d about -
  • M.
  • G.M.
  • Mode
  • Median
The limits of correlation coefficient are
  • -1 to 1
  • Zero to 1
  • No limit
  • Any other
Correlation coefficient is independent of-
  • Change of origin
  • change of scale
  • Change of origin and scale
  • None of the above
The degree of freedom of X 2 test for 4 x 3 contingency table is -
  • 12
  • 7
  • 6
  • 11
The relation among A.M., G.M. and H.M. are-
  • M. > G.M. <H.M
  • M. < G.M. <H.M
  • M.> G.M. > HM
  • Any other
The minimum number of frequencies are required in Chi-square a Test's-application -
  • ≥ 50
  • <50
  • =50
  • Any other
While tossing of two coins simultaneously, probability of appearance of two heads p(HH) is –
  • 1/2
  • 1/3
  • 1/4
  • Any other
Mean deviation will be minimum when the deviations are taken about -
  • AM
  • G.M.
  • Mode
  • Median
Which is not a principle of experimental design...?
  • Replication
  • Randomization
  • Local control
  • Treatment
To find out the size of garments we use....
  • AM
  • Mean
  • Mode
  • Median.
Example of absolute measures of dispersion
  • Range
  • Mean Deviation
  • Standard deviation
  • All of these
Which is type of kurtosis:
  • Leptokurtic (narrow peak/base)
  • Mesokurtic (normal curve)
  • Platykurtic (flat peak/broad base)
  • All of these
In statistics t test is used when........
  • Sample size < 30
  • Sample size > 30
  • Population SD is unknown
  • both a & c
Examples of Poisson Distribution-
  • Number of deaths from a disease
  • Number of defective materials
  • Number of wrong calls receives in a month.
  • All of these
Types of correlation:
  • Positive/negative:
  • Simple, partial and multiple correlations:
  • Linear and non linear correlation:
  • All of these
Conditions for applying x test:
  • Total sample size > 50
  • Expected frequency of each and every class should not be less than 5
  • The sample observation should be independent
  • All of these
Application of Chi-square?
  • To test the goodness of fit
  • Testing the independence of two attributes
  • To study gene frequencies in population genetics
  • All of above
The classification according to some quality or attribute is called.....classification.
  • Qualitative
  • Quantataive
  • Non- Parameter
  • All the Above
Median is the average suited for........ classes
  • Magnitude
  • Numerical Abbreviation
  • Both
  • None of these
The Range of any series is the.......of the greatest (maximum) and the smallest minimum observation.
  • Difference value
  • Degree of freedom
  • Kurtosis
  • S.D
.........is a good measure of dispersion.
  • Difference value
  • Degree of freedom
  • Kurtosis
  • S.D
The limit of correlation coefficient is
  • -1 to +1
  • -1 to
  • 1 to 9
  • infinite
In Chi-square test, total number of frequencies should be greater than ...........
  • 12
  • 50
  • 151
  • 75
In Chi-square test, Yates correction is needed when 5 any of cell frequencies is less than.........
  • 12
  • 5
  • 15
  • 75
Paired t-test is applied when observations are
  • Mean
  • Mode
  • Median
  • None of these
In trails, one factor is tested, than it is called..........
  • Design
  • Experiments
  • Research
  • None
Range is the measure of...........
  • Standad Deviation
  • Variance
  • Dispersion
  • None of these
The most commonly used measure of central tendency is
  • Mean
  • Arthmatric mean
  • Both
  • None of these
Standard deviation of the sampling distribution of means is called.....
  • Standard error of mean (SEM)
  • Correlation coefficient
  • Chi-square
  • All of these
Regressin coefficients are not independent of change of…..
  • Scale
  • Range
  • Both
  • None
Average rates are calculated by .....
  • Mean
  • Mode
  • Median
  • None of these
Independence of two attributes is tested by..
  • F-Test
  • Z-Test
  • T- Test
  • Chi square (X square)
Father of vital statistics was….
  • R.
  • Fisher
  • Captain John Grant
  • None of these
The purpose of randomization in field experiment is to..............
  • Control variance
  • Error Derror
  • Experimental Design
  • None of these
Unit less measure of dispersion is..............
  • V.
  • Range
  • Median
  • Mode
Coefficient of Variation is computed by...........
  • (
  • V./Mean)/xy
  • (S.
  • /Mean)/100
Expression for degrees of fredom in RBD is.....
  • (n-1) (r-2)
  • (n-1) (r-3)
  • N2-1
  • (n-1) (r-1)
Probability of impossible event is always.........
  • Zero
  • One
  • Negative
  • None of these
The range of probability lies between...........
  • -1 to +1
  • -1 to ∞
  • 0 to 1
  • None of these
To find the average height of plants we should
  • Arithmetic mean
  • Chi-Square
  • Standrad Deviation
  • All of these
Goodness of test is used for distribution of.........
  • Arithmetic mean
  • Chi-Square
  • Standrad Deviation
  • All of these
Minimum degree of freedom for error in ANOVA is...
  • 8
  • 10
  • 50
  • 12
For testing the Significance of the difference between two means, we use the following test..?
  • T-test
  • F-test
  • X 2 Test
  • Regression coefficient T test