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Each section contains 100 MCQs on Business Statistics .

Find the probability that in a family of 4 children there will be at least one boy. Assume that the probability of a male birth is $$\frac{1}{2}$$.

A) $$\frac{{15}}{{16}}$$ B) $$\frac{3}{9}$$ C) $$\frac{7}{8}$$ D) $$\frac{1}{9}$$

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

. . . . . . . . errors are made when we accept a null hypothesis which is not true.

A) Type II B) Type I C) Both A and B D) None of these

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

. . . . . . . . is a process of transporting the data from one location to the other

A) System B) Network topology C) Network D) Data communication

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Six dice are thrown 729 times. How many times do you expect the dice to show five or six?

A) 160 B) 200 C) 233 D) 130

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

You are given the following information about advertising expenditure and sales.

	Advertisement (X)	Sales (Y) (Rs. in lakh)
Arithmetic Mean	10	90
Standard Deviation	3	12

Correlation coefficient between advertising expenditure and sales 0.80. What is the likely sales for advertising budget of Rs. 15 lakh?

A) Rs. 120 lakh B) Rs. 106 lakh C) Rs. 58 lakh D) Rs. 48 lakh

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

From a well shuffled pack of 52 cards a card is selected at random. Find the probability that it is a black coloured card

A) $$\frac{1}{2}$$ B) $$\frac{1}{{52}}$$ C) $$\frac{1}{3}$$ D) $$\frac{1}{{52 - 1 = 51}}$$

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In a negatively skewed distribution,

A) Median < Mode < Mean B) Mode > Mean > Median C) Mode > Median > Mean D) Mean < Mode < Median

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

Management information system plan includes

A) System development schedule B) Hardware and software plan for the procurement and implementation C) Matching the plan execution D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In two large populations there are 35 and 30 per cent of fair haired people. Will the differ ence disappear at 5% level of significance, if samples of 1500 and 1000 are respectively taken from the two populations?

A) Difference is significant B) Significant with condition C) Difference is not significant D) Significant with error

Discuss

Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Given, N = 15, $$\overline {\text{X}} $$ = 25, $$\overline {\text{Y}} $$ = 18, $$\sum $$d²x = 136, $$\sum $$d²y = 138, $$\sum $$dxdy = 122. Calculate the correlation coefficient.

A) 0.39 B) 0.89 C) -0.89 D) -0.39

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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