CA Foundation Maths, Statictics, Logic, and Reasoning: Questions 117 - 123 of 154

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Question number: 117

» Correlation and Regression

MCQ▾

Question

The difference between the observed value and the estimated value in regression analysis is known as

Choices

Choice (4) Response

a.

Error

b.

Error or Residue

c.

Residue

d.

Deviation

Question number: 118

» Correlation and Regression

MCQ▾

Question

Regression analysis is concerned with

Choices

Choice (4) Response

a.

Establishing a mathematical relationship between two variables

b.

Predicting the value of the dependent variable for a given value of the independent Variable

c.

Measuring the extent of association between two variables

d.

Both a. and b. are correct

Question number: 119

» Correlation and Regression

MCQ▾

Question

For finding correlation between two attributes, we consider

Choices

Choice (4) Response

a.

Scatter diagram

b.

Pearson’s correlation coefficient

c.

Spearman’s rank correlation coefficient

d.

Coefficient of concurrent deviations.

Question number: 120

» Correlation and Regression

MCQ▾

Question

The two lines of regression become identical when

Choices

Choice (4) Response

a.

r = –1

b.

r = 0

c.

r = 1 or -1

d.

r = 1

Question number: 121

» Correlation and Regression

MCQ▾

Question

If the coefficient of correlation between two variables is 0.7 then the percentage of variation unaccounted for is

Choices

Choice (4) Response

a.

51%

b.

49%

c.

70%

d.

30%

Question number: 122

» Theoretical Distributions Binomial

MCQ▾

Question

An important discrete probability distribution is

Choices

Choice (4) Response

a.

Poisson distribution.

b.

Normal distribution.

c.

Cauchy distribution.

d.

Log normal distribution.

Question number: 123

» Statistical Description of Data » Tabular Representation of Data

MCQ▾

Question

The entire upper part of a table is known as

Choices

Choice (4) Response

a.

Caption

b.

Body

c.

Stub

d.

Box head

f Page
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