Stratified Sampling Quiz with Answers PDF Download – Test 109

The procedure in which the number of elements in stratum are not in proportional to the number of elements in population is classified as

1. indirect strata procedure
2. direct strata procedure
3. non proportional procedure
4. proportional procedure

In beta distribution, the expected value of random variable x is calculated as

1. E(x) = m ⁄ m - n
2. E(x) = n ⁄ m + n
3. E(x) = m ⁄ m + n
4. E(x) = n ⁄ m * n

The method of sampling in which the random sampling will not be possible because the population is widely spread is classified as

1. secondary stage sampling
2. multistage sampling
3. primary stage sampling
4. sub stage sampling

The type of probability approach in which the event A is the ratio explaining the number of times event A is occurred in experiments is classified as

1. counted probability distribution
2. relative frequency approach
3. irrelative frequency approach
4. fixed probability distribution

In sampling distribution, the standard deviation must be equal to

1. σ + square root of sample size
2. σ * square root of sample size
3. σ - square root of sample size
4. σ ⁄ square root of sample size