Question

Q1. Compute the coefficient of correlation of the following score of A and B
A 5 10 5 11 12 4 3 2 7 1
B 1 6 2 8 5 1 4 6 5 2
a. 0.58
b. 0.54
c. 0.56
d. 0.52
Q2. When X increases, Y increases and their ratio is 1 : 2 throughout. What kind of correlation exist between X and Y?
a. Positive
b. Negative
c. Positive Linear
d. Negative Linear
Q3. If there is a perfect disagreement between the marks in geography and statistics ,then what would be the value of rank correlation coefficient?

a. 1
b. 0
c. - 1
d. 5
Q4. Correlation coefficient is of the units of measurement.

a. Independent
b. Dependent
c. Both (a) and (b)
d. None of these
Q5. The relationship between three or more variables is studied with the help of
correlation

a. Multiple
b. Single
c. Double
d. None
Q6. When r = 1, all the points in a scatter diagram would lie:

a. On a straight line directed from lower left to upper right
b. On a straight line
c. On a straight line directed from upper left to lower right
d. Both (a) and (b)
Q7. Number of pairs of observations of x and y series = 10 X series: Arithmetic average = 65
Standard deviation = 23.33
Y series: Arithmetic average = 66 Standard deviation = 14.9
Summation of products of corresponding deviation of X and Y series = + 2704 Calculate product moment correlation of x and y series.

a. 0.78
b. +0.75
c. 0.58
d. 0.57
Q8. The lowest strength of association is reflected by which of the following correlation coefficients?

a. 0.95
b. -0.60
c. 0.35
d. 0.29
r = .8 ,sum of D2 = 33 find N
Q9. Cov (x,y) = 18.6; var(x) = 20.2; var(y) = 23.7. Find ‘r’. a. 0.85
b. 0.75
c. 0.65
d. 0.45
Q10. The range of simple correlation coefficient is:

a. 0 to infinity
b. Minus one to plus one
c. Minus infinity to infinity
d. 0 to plus one
Q11. When we want to classify the data given in numerical terms, which method of classification of data is used?

a. Qualitative classification
b. Quantitative classification
c. Chronological classification
d. Conditional classification
Q12. Range of a frequency distribution is equal to

a. Largest value - Smallest value
b. Number of classes × Class Interval (when class intervals are the same)
c. Largest value - Smallest value and Number of classes × Class Interval (when class intervals are the same)
d. None of these

Q13. Tally marks determine:

a. Class limit
b. Class boundary
c. Class width
d. Class frequency
Q14. ______ Price Index are used in calculating the purchasing power of money and real wage.
Q15. ______ is the short form for Bombay Stock Exchange (BSE).
Q16. SENSEX is an Index number indicating a change in the price of top 30 shares traded at ___________ Stock Exchange.
Q17. Price Index can't go below base year price.
18. The index number for the base year depends upon price relatives of the current year.
19. __________ will be used to show two or more characteristics of the data.
Q20. Data is presented in ________ and _______in the form of a table
Q21. In India, ________ marginal farmers are living below poverty line.
Q22. __________ deals with laws, principles, theories and facts of economics.
Q23. List the different cases which are suitable for collecting primary data through telephone interviews.

Answer 1

Answer:

answers are

a,c,d a,b,e,f,c,a g