Question # 1

The data about the sex of new babies is called:

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Continuous data

Qualitative data

Quantitative data

Discrete data

Is a symmetrical distribution.

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Q1 = Q3

P25 = P50 = P75

A.M = G.M = H.M

A.M = Med = Mode

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4/10

2/10

1/10

0

The mean deviation is least if deviations are taken from

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A.M

Mode

G.M

Median

Random number can be generated manully by

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Dawing cards from numbered cards

Roitaing or spinning numbered wheels

Use of random numbers table

All of these

When referring to a curve whose longer tail is to the right, you would call it.

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Symmetrical

Positively skewed

Negatively skewed

None of these

The binomial distribution is symmetrical when:

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P > q

p = 1/2

Probability of success & probability of failure are equal

Both (B) and (C)

The main advantages of using the range as a measure of dispersion is that.

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It is easy to calculate

It is heavily influenced by extreme values.

It can change drastically from one data set to the next

It is determined by only two points in the data set

In hypergeometric distribution, the successive trials are.

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Dependent

Independent

Both (A) & (B)

None of these

The probability of getting two red balls with replacement from a bag containing 4 red, 3 white and 3 black balls is.

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4/25

1/25

9/100

2/25

If a curve has a longer tail to the left . it is called a.

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Symmetrical curve

Positive skewed curve

Negatively skewed curve

None of these

The probability of success changes from trial to trial, is the property of:

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Binomial experiment

Hypergeometric experiment

Both A and B

None of these

How many basic types of index numbers.

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2

3

4

5

What is the probability that a value chosen at random from a particular population is larger than the median of the popultion.

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0.25

0.5

1.0

0.67

The parameters of the binomial distributions are

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x and n

x and p

p and q

n and p

Mean is affected by the change of.

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Origin

Scale

Both a and b

None

The mean of a constant 'a' is

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0

a/2

a²

None of these

Probility density function is the probebilyt function of.............. random variable.

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Discrete

Qualitative

Continuous

None

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