Central Tendency Measures MCQs (Multiple Choice Questions) PDF Download - 90

The Σxwis divided by Σwis used to calculate

1. weighted arithmetic mean
2. paired arithmetic mean
3. non-paired arithmetic mean
4. square of arithmetic mean

The variance of binomial probability distribution is larger in value if

1. q is greater than 0.5
2. p and q are equal
3. p and q are greater than 0.5
4. p is greater than 0.5

The product A has per unit contribution of 6 with the sold quantity of 120 units, product B has per unit contribution of 8 with sold quantity of 100 units and product C has per unit contribution of 10 with sold quantity of 130 units then the weighted average mean is

1. $7.06
2. $8.06
3. $9.06
4. $10.06

If a luggage bag contains two types of shirts, 40 percent are dress shirts, 45 percent are T-shirts and 30 percent are blue jeans then the probability of selecting a dress shirt in random sample is

1. 0.47
2. 0.4
3. 0.35
4. 0.3

If the random samples are drawn without replacement and the population from which samples are drawn is infinite then the method which is not applicable is

1. weighted error probability distribution
2. hyper geometric probability distribution
3. Bernoulli probability distribution
4. asymmetrical random distribution