NCERT Solutions for Class 11 Maths Chapter 15 Exercise 15.2

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Class 11 Maths NCERT Solutions Chapter 15 Statistics Exercise 15.2 are based on important concepts including Mean deviation and Standard Deviation.

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Also Check:

Chapter Related Topics
Mode of Grouped Data	Frequency Distribution Table	Median Formula
Difference between ln and log	Difference between mean and median	Difference between average and mean

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CBSE CLASS XII Related Questions

1.
Evaluate: \[ \cos\left[\sin^{-1}(-1)-\tan^{-1}(-\sqrt{3})\right]. \]
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2.
Assertion (A) : In an experiment of throwing an unbiased die, the probability of getting a prime number given that number appearing on the die being odd is \( \frac{2}{3} \).
Reason (R) : For any two events \( A \) and \( B \), \( P(A|B) = \frac{P(A \cup B)}{P(B)} \).
- Both Assertion (A) and Reason (R) are true and the Reason (R) is the correct explanation of the Assertion (A).
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Find: \[ \int \frac{x^2}{(x^2+9)(x^2+16)}\,dx \]
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4.
Sports car racing is a form of motorsport which uses sports car prototypes.The competition is held on special tracks designed in various shapes.
The equation of a sports car racing track is given as: \[ f(x)= \begin{cases} x^4-4x^2+4, & 0\leq x<3,\\ x^2+40, & x\geq 3 \end{cases} \] Based on this information:
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Check whether the function \[ f(x)= \begin{cases} \dfrac{|x-3|}{2(x-3)}, & x<3,\\[6pt] \dfrac{x-6}{6}, & x\geq 3 \end{cases} \] is continuous at \(x=3\) or not.
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The least value of \[ f(x)=e^{-x} \] in the interval \[ [0,3] \] is:
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