Binomial & Hyper-geometric Probability Mcqs - Set 5

1)   Binomial distribution is negatively skewed when:__________________?

a. p=0
b. p>1/2
c. p=1/2
d. p=1/3
Answer  Explanation 

ANSWER: p>1/2

Explanation:
No explanation is available for this question!


2)   Binomial distribution has parameters:______________?

a. Three
b. Two
c. One
d. Four
e. None
Answer  Explanation 

ANSWER: Two

Explanation:
No explanation is available for this question!


3)   The variance of binomial distribution is always:________________?

a. Less than mean
b. Equal to mean
c. Greater than mean
d. Equal to standard deviation
e. None of these
Answer  Explanation 

ANSWER: Less than mean

Explanation:
No explanation is available for this question!


4)   Binomial distribution is symmetrical when:_________________?

a. p = q
b. p > q
c. p < q
d. np > npq
Answer  Explanation 

ANSWER: p = q

Explanation:
No explanation is available for this question!


5)   The successive trials are with replacement in:________________?

a. Hpergeometric distribution
b. Binomial distribution
c. Geometric distribution
d. None of these
Answer  Explanation 

ANSWER: Binomial distribution

Explanation:
No explanation is available for this question!


6)   Which of the following is not a condition of the binomial distribution ?

a. Only 2 possible outcomes
b. Have constant probability
c. Must have at least 3 trials
d. Trials must be independent
Answer  Explanation 

ANSWER: Must have at least 3 trials

Explanation:
No explanation is available for this question!


7)   if in a binomial probability distribution mean and variance are 6 and 2.4 respectively, then the parameters of this distribution are:____________________?

a. n = 10, p = 6/10
b. n = 50, p = 6/50
c. n = 10, p = 3/5
d. n = 10, p = 2/5
Answer  Explanation 

ANSWER: n = 10, p = 3/5

Explanation:
No explanation is available for this question!


8)   In a binomial distribution, n = 20 and p = 3/5, then variance of this distribution ______________?

a. 60
b. 12
c. 4.8
d. 0
Answer  Explanation 

ANSWER: 4.8

Explanation:
No explanation is available for this question!


9)   Variance of binomial distribution is always:______________?

a. Less than mean
b. Greater than mean
c. Equal to mean
d. Less than equal to mean
Answer  Explanation 

ANSWER: Less than mean

Explanation:
No explanation is available for this question!


10)   What is the variance of binomial distribution __________________?

a. n p
b. np (1 – p)
c. np/q
d. nq/p
Answer  Explanation 

ANSWER: np (1 – p)

Explanation:
No explanation is available for this question!