Friday, 13 March 2020

STA301-Statistics and Probability Quiz MCQs Lecture 23-45 Finalterm Objective Questions | SUPERSTARWEBTECH


STA301-Statistics and Probability Quiz  MCQS #Objective #Questions #Finalterm

1. Which of the following is the property of hypergeometric experiment?
  • p remains constant from trial to trial
  • successive trials are independent
  • sampling is performed without replacement
  • n is not fixed
2. If the first-moment ratio is less than 0, then the distribution will be:
  • positively skewed
  • symmetrical
  • negatively skewed
  • None
3. Poisson distribution can be used to approximate the hypergeometric distribution when:
  • p>0.05
  • p<0.05
  • p>0.10
  • p<0.10
4. ___ is used when we are dealing with proportions to find the probabilities:
  • Normal distribution
  • t-distribution
  • Both Z & t distribution
  • F distribution
5. Total no. of possible samples of size 3 (with replacement) from the population of size 6, will be:
  • 256
  • 196
  • 216
  • 325
6. In sampling from a large population with sigma=20, the standard error of the mean is found to be 2. The size of the sample used is:
  • 100
  • 40
  • 10
  • 20
7. In sampling from a large population with σ=60. The size of the sample used is 100, the value of the standard error will be:
  • 4
  • 42
  • 15
  • 6
8. The number of parameters in a normal distribution is(are):
  • 1
  • 2
  • 3
  • 4
9. In hypergeometric distribution probability of success always:
  • is constant from trial to trial
  • varies from trial to trial 
  • sometimes varies and sometimes is constant
  • None
10. In hypergeometric distribution; experiment can be repeated a
  • fixed number of times
  • variable number of times
  • depends upon the situation
  • None
11. In a binomial experiment, the probability of success changes on
  • Each trial
  • Second trial
  • 10th trial
  • 30th trial 
12. The range of the binomial distribution is:
  • 0, 1, 2, ... , 100
  • 0, 1, 2, ..., n
  • 0, 1, 2, ..., x
  • 1, 2, ..., n
13. The number of typing errors per page in a book follows.
  • Normal Distribution
  • Poisson process
  • Binomial distribution
  • Hypergeometric distribution
14. The central limit theorem states that the mean of the sampling distribution of the means is equal to the population
  • Standard deviation
  • Standard error
  • Random error
  • Mean