Shape of possion distribution depends upon?
Shape of possion distribution depends upon?
A. On random variable X
B. Its parameter
C. Mean
D. Variance
RANDOM VARIABLE AND PROBABILITY DISTRIBUTIONS
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If p=q than the shape of binomial distribution?
If p=q than the shape of binomial distribution?A. Positively skewed
B. Negative skwed
C. Symmeteric
D. No shape -
If p=0.6 and q=0.4 than shape of the binomial distribution?
If p=0.6 and q=0.4 than shape of the binomial distribution?A. Positively skewed
B. Negatively skewed
C. Symmetric
D. Bell shaped -
The number of successes in fixed time interval follows?
The number of successes in fixed time interval follows?A. Gamma distribution
B. Binomial distribution
C. Negative binomial dis
D. Possion distribution -
The time interval between two successes follows?
The time interval between two successes follows?A. Possion distribution
B. Exponential distribution
C. Gamma distribution
D. Beta distribution -
Another name of explanatory variable is_________?
Another name of explanatory variable is_________?A. Independent
B. Predictor
C. Controlled
D. All of above -
Which of the following statement is true for CDF of the random variable X?
Which of the following statement is true for CDF of the random variable X?A. From larger values of x
B. From smallest upto specific value of x
C. From zero to specific value of x
D. None of these -
When the word random variable use in statistics it must have?
When the word random variable use in statistics it must have?A. Variable
B. Probability distribution
C. Values
D. None of these -
Total Area under the curve in probability of density function is ?
Total Area under the curve in probability of density function is ?A. 0
B. -1
C. 1
D. Infinity -
E(ax + b) = A E(x) +___________________?
E(ax + b) = A E(x) +___________________?A. (C)
B. E(x)
C. b E(a)
D. b