1. Choice (c) is correct. Standard deviation = √variance = √16 = 4 This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-Read more

    Choice (c) is correct.
    Standard deviation = √variance = √16 = 4
    This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-13

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    • 15
  2. Choice (c) is correct.  Coefficient of variation = (S.D./Mean) × 100  60 = (35/Mean) × 100  Mean = 35 ×  100 /60 = 58.33 This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding. For more please visit here: https://www.tRead more

    Choice (c) is correct. 
    Coefficient of variation = (S.D./Mean) × 100 
    60 = (35/Mean) × 100 
    Mean = 35 ×  100 /60 = 58.33
    This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-13

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    • 6
  3. Choice (c) is correct.  As player A is more consistent as coefficient of variation for player A < coefficient of variation for player B. This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding. For more please visitRead more

    Choice (c) is correct. 
    As player A is more consistent as coefficient of variation for player A < coefficient of variation for player B.
    This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-13

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    • 14
  4. Choice (b) is correct. This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-13

    Choice (b) is correct.
    This question related to Chapter 13 maths Class 11th NCERT. From the Chapter 13: Statistics. Give answer according to your understanding.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-13

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    • 4
  5. Choice (b) is correct. Let y = (sin x + cos x)² = sin² x + cos² x + 2 sin x cos x = 1 + 2 sin x cos x dy/dx = d/dx (1 +2sin x cos x) = d/dx (1) + 2 d/dx (sin x cos x) ⇒ dy/dx = 0 + 2 ( sin x (d/dx) cos x + cos x(d/dx) sin x) = 2 {sin x (- sin x) + cos x (cos x)} ⇒dy/dx = 2(cos² x - sin² x) = 2 cos 2Read more

    Choice (b) is correct.
    Let y = (sin x + cos x)² = sin² x + cos² x + 2 sin x cos x = 1 + 2 sin x cos x
    dy/dx = d/dx (1 +2sin x cos x) = d/dx (1) + 2 d/dx (sin x cos x)
    ⇒ dy/dx = 0 + 2 ( sin x (d/dx) cos x + cos x(d/dx) sin x) = 2 {sin x (- sin x) + cos x (cos x)}
    ⇒dy/dx = 2(cos² x – sin² x) = 2 cos 2x
    This question related to Chapter 12 maths Class 11th NCERT. From the Chapter 12: Limits and Derivatives. Give answer according to your understanding.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-11/maths/#chapter-12

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    • 13