Quiz about BCS301 Quiz-1(CSE,ISE,AI&ML)

Question 1

The probability distribution is valid if

Accepted Answer

Both A and B

Answer

p(x) $$\ge$$ 0

Answer

$$\sum_{ }^{ }p\left(x\right)=1$$

Answer

None of the above

Question 2

Limiting case of Binomial distribution leads to

Accepted Answer

Poisson distribution

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Uniform distribution

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Exponential distribution

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Normal distribution

Question 3

If the mean of a Binomial distribution is np, the standard deviation of this distribution is

Accepted Answer

$$\sqrt[]{npq}$$

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np+p

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np(1-p)

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np-p

Question 4

The normal distribution is symmetrical about its

Accepted Answer

mean

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median

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mode

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range

Question 5

Which probability distribution has same mean and variance

Accepted Answer

Poisson distribution

Answer

Exponential distribution

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Binomial distribution

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Uniform distribution

Question 6

if X and Y are independent random variables of Joint Probability Distribution then

Accepted Answer

$$E\left(XY\right)=E\left(X\right).E\left(Y\right)$$

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$$E\left(XY\right)=E\left(X\right)+E\left(Y\right)$$

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$$E\left(XY\right)=E\left(X\right)-E\left(Y\right)$$

Answer

None of the above

Question 7

A vector V=(v₁,v₂,----v_n) is called a probability vector if each one of it components are non-negative and their sum is equal to

Accepted Answer

1

Answer

infinity

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negative

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0

Question 8

If $$COV(X,Y)=0$$ in a joint probability distribution then $$\rho\left(X,Y\right)=$$

Accepted Answer

0

Answer

2

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3

Answer

1

Question 9

Condition of unique fixed probability vector is

Accepted Answer

VP=V

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V=P

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VP2=P

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None of the above

Question 10

Full form of TPM is

Accepted Answer

Transition probability matrix

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Transpose probability matrix

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Technical probability matrix

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Total probability matrix

Question 11

A finite subset of the universe or population is called

Accepted Answer

sample

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sampling

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large sample

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random sample

Question 12

The standard deviation of the sampling distribution is called

Accepted Answer

standard error

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range

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mean deviation

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variance

Question 13

The complimentary to the null hypothesis is called

Accepted Answer

alternative hypothesis

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contrary hypothesis

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opposite hypothesis

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antithesis hypothesis

Question 14

Rejecting the hypothesis when it should be accepted is called

Accepted Answer

Type I error

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Type II error

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Null hypothesis

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Confidence interval

Question 15

The sampling distribution of large samples is assumed to be

Accepted Answer

normally distributed

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bimodal distributed

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exponentially distributed

Answer

uniformly distributed

BCS301 Quiz-1(CSE,ISE,AI&ML)

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