Random Variable Classes Notes Questions with Answers PDF Download – Test 75

MCQ 371: The class of variable which can accept only the values from set of integers is classified as:

1. discrete random variable
2. continuous random variable
3. posterior random variable
4. interior random variable

MCQ 372: If the total number of elements with some specific characteristics is 18 from a population of 40 and the sample is drawn without replacement with the size of 4 then the mean of hyper geometric probability distribution is:

1. 4.8
2. 1.8
3. 2.8
4. 3.8

MCQ 373: If the rate of occurrences in Poisson probability distribution is smaller and the occurrences have large numbers then the distribution tends to be:

1. negatively skewed and mesokurtic
2. positively skewed and mesokurtic
3. symmetrical and leptokurtic
4. symmetrical and mesokurtic

MCQ 374: In the classes of grouped data such as 10-15, 16-20, 21-25, 26-30 with respective frequencies of each class as 3, 5, 4, 3 then the range is:

1. 5
2. 6
3. 15
4. 20

MCQ 375: The measures which considers the mean or median to calculate average deviation does not includes:

1. mean absolute deviation
2. standard deviation
3. variance
4. median deviation