What is the formula for binomial distribution? = nCn px qn-x b) P = xCx px qn-x c) P = nCx px qn-x d) P = nCx pn qn-x

If in a Binomial distribution P is very small and n is very large but nP = m. i.e., expected or mean value of binomial distribution is not negligible, then if approximate closely to the

A

Poisson Distribution

B

Correlation Analysis

C

Regression Analysis

D

Mode

Statement I Exponential probability distribution has the mean = $$\frac{1}{\mu }$$ and variance = $$\frac{1}{{{\mu ^2}}}$$
Statement II The mean, median and mode do not coincide in the normal distribution.
Statement III The binomial distribution is symmetrical for any value of p (probability of success).

A

All the three statements are true

B

All the three statements are false

C

Statement I is true, while Statements II and III are false

D

Statement III is true, while. Statements I and II are false

The following two statements relate to probability distributions. Choose the correct statements being correct or incorrect.
Statement I When 'p' and 'q' are equal in the binomial distribution, the shape of the distribution is perfectly symmetrical irrespectiveof the size of 'n'.
Statement II The mean and the variance of poisson distribution are not equal.

A

Statement I is correct, but Statement II is incorrect

B

Statement II is correct, but Statement I is incorrect

C

Both statements are correct

D

Both statements are incorrect

P = nCx px qn-x is the formula for _____

A

= nCx px qn-x is the formula for _____ ] parametric distribution

B

X = x

C

X = x

D

X = x

nC1+nC2+nC3+.........+nCn এর মান কোনটি?

A

2n

B

2n-1

C

2n+1

D

2n-2

Who inaugurated the Naval Communication Network (NCN) Training Lab at Signal School, Kochi in July 2020?

A

Bimal Verma

B

Anil Kumar Chawla

C

Arun Prakash

D

Nirmal Kumar Verma

E

G. Ashok Kumar

Which two of the following statements are true? a) Skewness studies the flatness or peakedness of the distribution b) A positively skewed distribution curve is stretched more to the right than to the left c) On the basis of empirical relationship between mean, mode and median for moderately asymmetrical distribution, Karl Pearson's coefficient of skewness can be measured by 3 (Mean -Median) divided by Standard Deviation d) If mean < mode, the distribution is positively skewed Choose the correct option from those below:

A

a) and b)

B

b) and c)

C

c) and d)

D

b) and d)

The salary of workers in a factory follows a binomial (300, 1/6) distribution. What will be the mean and standard deviation of the distribution curve?

A

40, 41.6

B

40, 6.4

C

50, 41.6

D

50, 6.4

The salary of workers in a factory follows a binomial (180, 1/3) distribution. What will be the mean and variance of the distribution curve?

A

40, 60

B

40, 50

C

60, 50

D

60, 40

When is Pascal distribution, called negative binomial distribution?

A

When r>0 but not necessarily an integer

B

When r<0 but an integer

C

When r>3 and an integer

D

When r=0 and an integer

What is the formula for binomial distribution? = nCn px qn-x b) P = xCx px qn-x c) P = nCx px qn-x d) P = nCx pn qn-x

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