51.
Which of the following is true where data is highly positively skewed?

53.
The law of statistics, which says 'Moderately large number of items chosen at random from a large group possess the characteristics of the large group', is referred to as:

54.
Correlation coefficient by least square method is obtained by the following formula.

56.
5 red balls, 5 green balls and 5 yellow balls in a bag. If one ball is drawn at random then probability of that ball will be red

57.
Which of the following is the main benefit of snowball sampling?

58.
What proportion of area of a normal curve is included between (i) σ (ii) 2σ (iii) 3σ distances from the mean?

60.
Which two of the following measures of central tendency are NOT capable of algebraic treatment?
1. Geometric Mean
2. Median
3. Arithmetic Mean
4. Mode
5. Harmonic Mean
Choose the correct answer from the options given below: