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September 2021 term · Mathematics for Data Science I · BSMA1001

Maths 1 Quiz 2: 31 October 2021, Set QPA (September 2021 term)

The IIT Madras BS Mathematics for Data Science I (Maths 1) Quiz 2 paper sat on 31 Oct 2021, in the September 2021 term, set QPA: 19 questions for 50 marks in 120 minutes. Every question is below with its answer. Take it as a timed mock test to be marked, or read it through first.

Questions
19
Marks
50
Duration
120 min
MSQ
9
Written
5
Numerical
5

Updated

Official paper: IIT M QUIZ FOUNDATION EXAM QPB 31 OCT 2021 350 · No negative marking.

Question 1

+5 marksOne or more correct options

Select all that apply.

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answers

  • A
  • B

Question 2

+5 marksOne or more correct options

Choose the correct options from the following

Select all that apply.

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answers

  • A
  • B
  • D

Question 3

+5 marksOne or more correct options

Select all that apply.

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answers

  • A
  • C

Question 4

+5 marksOne or more correct options

Select all that apply.

  1. A

    g(x) may be the inverse of f(x).

  2. B

    p(x) and q(x) are even functions but f(x) and g(x) are neither even functions nor odd functions.

  3. C

    q(x) could not be the inverse function of p(x).

  4. D

    p(x), q(x) can be an even degree polynomial functions and f(x) can be an odd degree polynomial functions.

Show answer

Correct answers

  • A

    g(x) may be the inverse of f(x).

  • B

    p(x) and q(x) are even functions but f(x) and g(x) are neither even functions nor odd functions.

  • C

    q(x) could not be the inverse function of p(x).

  • D

    p(x), q(x) can be an even degree polynomial functions and f(x) can be an odd degree polynomial functions.

Question 5

+5 marksWritten answer

A function f(x)f(x), fit for the data given in the Table-1 recorded by a student, is

y=f(x)=10x2(x2−1)(x2−9)(x2+1)−3−log⁡10(c−1)y = f(x) = 10^{x^2(x^2-1)(x^2-9)(x^2+1)} - 3 - \log_{10}(c - 1)

What will be the value of cc, so that SSE (Sum Squared Error) will be minimum?

xx−3-3−1-1001133
yy−4-4−4-4−4-4−4-4−4-4

Table-1

NOTE: Enter your answer to the nearest integer.

Show answer

Correct answer: 101 or Question Numbers : (8 to 10) or Question Label : Comprehension or Sub questions

Question 6

+2 marksOne or more correct options

Which of the following statements is (are) correct?

Select all that apply.

  1. A
  2. B
  3. C
  4. D
Show answer

Correct answers

  • A
  • C

Question 7

+1 markOne or more correct options

Select all that apply.

  1. A

    4

  2. B

    5

  3. C

    6

  4. D

    3

Show answer

Correct answers

  • A

    4

  • B

    5

Question 8

+2 marksWritten answer

How many such food locations are there?
NOTE: Enter your answer to the nearest integer.

Show answer

Correct answer: 2 or Question Numbers : (11 to 12) or Question Label : Comprehension or Sub questions

Question 9

+2 marksOne or more correct options

Which of the following statements is (are) correct?

Select all that apply.

  1. A

    Total cost of plan A will be 450.

  2. B

    Total cost of plan B will be 450.

  3. C

    Total cost of plan B will be 550.

  4. D

    Total cost of plan A will be 650.

Show answer

Correct answers

  • A

    Total cost of plan A will be 450.

  • B

    Total cost of plan B will be 450.

Question 10

+1 markWritten answer

NOTE: Enter your answer to the nearest integer.

Show answer

Correct answer: 0 or Question Numbers : (13 to 15) or Question Label : Comprehension or Sub questions

Question 11

+2 marksOne or more correct options

Which of the following statements is (are) correct?

Select all that apply.

  1. A

    The equation f(x) = g(x) has only one real root.

  2. B

    The equation f(x) = g(x) has two real roots.

  3. C

    y = 3*^(ax)* must pass through the intersection point of f(x) and g(x) to protect the life form on Earth.

  4. D

    The equation f(x) = g(x) has three real roots.

Show answer

Correct answers

  • A

    The equation f(x) = g(x) has only one real root.

  • C

    y = 3*^(ax)* must pass through the intersection point of f(x) and g(x) to protect the life form on Earth.

Question 12

+2 marksNumerical answer

NOTE: Enter your answer in two decimal places.

Show answer

Correct answer: -0.25

Question 13

+2 marksWritten answer

What will be the value of a.
NOTE: Enter your answer to the nearest integer.

Show answer

Correct answer: -4 or Question Numbers : (16 to 19) or Question Label : Comprehension or Based on the above data, answer the given subquestions. or Sub questions

Question 14

+1 markNumerical answer

What will be the value of a.
NOTE: Enter your answer to the nearest integer.

Show answer

Correct answer: 20

Question 15

+2 marksOne or more correct options

Which of the following statements is (are) correct?

Select all that apply.

  1. A

    b can be found using f(36) = g(36)

  2. B

    b cannot be determined.

  3. C

    By the end of 36^(th) day, there are roughly 20 leaves.

  4. D

    By the end of 36^(th) day, there are roughly 30 leaves.

Show answer

Correct answers

  • A

    b can be found using f(36) = g(36)

  • C

    By the end of 36^(th) day, there are roughly 20 leaves.

Question 16

+1 markNumerical answer

What will be the value of b.
NOTE: Enter your answer to the nearest integer.

Show answer

Correct answer: 12

Question 17

+2 marksWritten answer

NOTE: Enter your answer to the nearest integer.

Show answer

Correct answer: 2 or Question Numbers : (20 to 21) or Question Label : Comprehension or Based on the above data, answer the given subquestions. or Sub questions

Question 18

+2 marksNumerical answer

What is the radius of the circle after 10 seconds?
NOTE: Enter your answer to the nearest integer.

Show answer

Correct answer: 1

Question 19

+3 marksNumerical answer

NOTE: Enter your answer to the nearest integer.

Show answer

Correct answer: 1