Questions 61–70 of 148. Imported answers require independent review unless marked reviewed.

Topic practice 148 questionsPage 7 of 15

Question 3

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MEMCQ1 markNeeds review
The Dirac-delta function

for

, has the following property

The Laplace transform of the Dirac-delta function

for

;

is
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Question 3

Open question
MEMCQ1 markNeeds review
The mean and variance, respectively, of a binomial distribution for

independent trials with the probability of success as

, are
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Question 4

Open question
MEMCQ1 markNeeds review
The ordinary differential equation

subject to an initial condition

is solved numerically using the following scheme:

where

is the time step,

, and

. This numerical scheme is stable for all values of

in the interval ________.
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Question 5

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MEMCQ1 markNeeds review
Consider a binomial random variable

. If

are independent and identically distributed samples from the distribution of

with sum

, then the distribution of

as

can be approximated as
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Question 18

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MEMCQ1 markNeeds review
Value of

using Simpson’s one-third rule with interval size 0.3 is
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Question 19

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Value of

, where

, is equal to
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Question 26

Open question
MEMCQ2 marksNeeds review
Consider a vector

in 2-dimensional space. Let its direction (counter-clockwise angle with the positive

-axis) be

. Let

be an eigenvector of a

matrix

with corresponding eigenvalue

,

. If we denote the magnitude of a vector

by

, identify the VALID statement regarding

, where

.
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Question 26

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The value of

is
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Question 27

Open question
MEMCQ2 marksNeeds review
Let

represent the unit circle centered at origin in the complex plane, and complex variable,

. The value of the contour integral

(where integration is taken counter clockwise) is
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Question 27

Open question
MEMCQ2 marksNeeds review
Let the superscript

represent the transpose operation. Consider the function

, where

and

are

vectors and

is a symmetric

matrix. The stationary point of

is
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