๐Statistics MCQs
Statistics MCQs
490 MCQs131
If a Binomial experiment is repeated โNโ times then binomial frequency distribution is. _______________?
AN.{nx}px qn-x
BN p q
CN.{n/x}px qn-x
DN.{n/x}p qn-x
132
For a binomial distribution?
An must assume a number between 1 and 20 or 25
Bp must be a multiple of 10
CThere must be at least 3 possible outcomes
DNone of these
133
If _________ then the distribution is positively skewed?
Ap
Bq/p
Cp > q
Dp > 1/2
134
Which of the following is not a requirement for binomial distribution ?
AConstant Probability of Success
BOnly two possible outcomes
CA fixed number of trials
DEqually likely outcomes
135
In a binomial distribution mean and variance is _________________?
AVariance > mean
BMean
CVariance โ mean
DNone of these
136
A test is said to be most powerful test of size ฮฑ, if_______________?
AAmong all other test of size ฮฑ or less it has the largest power
BAmong all other test of size ฮฑ or greater it has the largest 1 โ ฮฑ
CAmong all other test of size ฮฑ or greater it has the smallest power
DAmong all other test of size ฮฑ or greater it has the largest ฮฒ
137
If the conditional distribution of X1,X2,โฆ..Xn given S=s, does not depends on ฮธ, for any value of S=s the statistics S=s(X1,X2,โฆ..Xn) is called______________?
AUnbiased
BSufficient
CConsistent
DEfficient
138
What is the variance of binomial distribution __________________?
An p
Bnp (1 โ p)
Cnp/q
Dnq/p
139
The sum of p and q is always:___________________?
A0
B2
C1
DNone of these
140
If in binomial distribution p โ q, the distribution is:___________________?
APositively skewed
BNegative skewed
CMay be positive skewed or negative skewed.
DNone of these