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Business Statistics and Research Methods
practice.

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Q221

Open question

Arithmetic mean of a group of 100 items is 50 and of another group of 150 items is 100. What will be the mean of all items?

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Q222

Open question

If the population is heterogeneous, which one of the following probability sampling methods is more appropriate?

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Q223

Open question

Range limit can be expressed as

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Q224

Open question

The product moment coefficient correlation (r) is obtained by

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Q225

Open question

⁵C₂ is equal to-

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Q226

Open question

The source of data are

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Q227

Open question

The sample mean is a:

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Q228

Open question

Number of peoplewatching TV at a given point of time is an example of

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Q229

Open question

If correlation coefficient between two variables is uncertain, it implies that

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Q230

Open question

Which of the following is not an attribute under statistical analysis?

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Q231

Open question

The arithmetic mean of 10 items is 50. If each item is increased by 5, then new arithmetic mean would be

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Q232

Open question

Coefficient of variation is calculated by the formula:

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Q233

Open question

The median can be found by

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Q234

Open question

In the margin of error, terms

n = \frac{Z _{1 - \frac{α}{2}}^{2} p ^{*} q ^{*}}{m ^{2}}

here,

P^{*}

stands for

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Q235

Open question

The sum of squared deviation is the least when taken from

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Q236

Open question

Alternative hypothesis is expressed by:

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Q237

Open question

Match the following.

List-I (Terms)	List-II (Explanations)
a. Unimodal	1. The distribution that can take a limited number of values which can be listed
b. Discrete probability distribution	2. The curve has a single peak
c. Continuous probability distribution	3. Where variable is allowed to take any value within given range

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Q238

Open question

The average speed of the train is calculated by

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Q239

Open question

If Laspeyre's Index No. is 121 and Paasche's Index No. is 144 then Fisher's Index No. is

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Q240

Open question

If 'm' is the mean of a Poisson Distribution, the standard deviation is given by

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Business Statistics and Research Methodspractice.

Business Statistics and Research Methods
practice.