CA Foundation Maths, Statictics, Logic, and Reasoning: Questions 63 - 69 of 154

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Question number: 63

» Theoretical Distributions Binomial

MCQ▾

Question

The important characteristic (s) of Bernoulli trials

Choices

Choice (4) Response

a.

Trials are infinite

b.

Each trial is associated with just two possible outcomes.

c.

Trials are independent

d.

Both b. and c. are correct

Question number: 64

» Theoretical Distributions Binomial

MCQ▾

Question

For Poisson fitting to an observed frequency distribution,

Choices

Choice (4) Response

a.

We equate the Poisson parameter to the median of the distribution.

b.

We equate the Poisson parameter to the mean of the frequency distribution.

c.

We equate the Poisson parameter to the mode of the distribution.

d.

All of the above

Question number: 65

» Statistical Description of Data » Diagrammatic Representation of Data

MCQ▾

Question

In order to compare two or more related series, we consider

Choices

Choice (4) Response

a.

Multiple bar chart or Grouped Bar Chart

b.

Multiple bar chart

c.

Grouped bar chart

d.

None of the above

Question number: 66

» Statistical Description of Data » Frequency Distribution

MCQ▾

Question

Relative frequency for a particular class

Choices

Choice (4) Response

a.

Lies between 0 and 1, both inclusive

b.

Lies between 0 and 1

c.

Lies between –1 to 1.

d.

Lies between –1 and 0

Question number: 67

» Correlation and Regression

MCQ▾

Question

If the coefficient of correlation between two variables is –0.9, then the coefficient of determination is

Choices

Choice (4) Response

a.

0.81

b.

0.1

c.

0.9

d.

0.19

Question number: 68

» Theoretical Distributions Binomial

MCQ▾

Question

Poisson distribution may be

Choices

Choice (4) Response

a.

Unimodal or Bimodal

b.

Multi-modal.

c.

Unimodal

d.

Bimodal

Question number: 69

» Theoretical Distributions Binomial

MCQ▾

Question

A binomial distribution is

Choices

Choice (4) Response

a.

Never symmetrical

b.

Symmetrical when p = 0.5

c.

Never positively skewed

d.

Never negatively skewed

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