AP EAMCET · Maths · Statistics
If the standard deviation of the numbers 2,3 , \(2 x\) and 11 is 3.5. Find the possible values of \(x\).
- A \(2 \cdot \frac{7}{2}\)
- B \(3 \cdot \frac{5}{3}\)
- C \(2 \cdot \frac{5}{2}\)
- D \(3 \cdot \frac{7}{3}\)
Answer & Solution
Correct Answer
(D) \(3 \cdot \frac{7}{3}\)
Step-by-step Solution
Detailed explanation
\(\sigma=3.5\)…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Maths
- \(\int_0^1 \sqrt{\frac{2+x}{2-x}} d x=\)AP EAMCET 2024 Hard
- A basket contains 5 apples and 7 oranges and another basket contains 4 apples and 8 oranges. If one fruit is picked out at random from each basket, then the probability of getting one apple and one orange isAP EAMCET 2025 Medium
- If the equivalent partial fraction of \(\frac{x^3}{(2 x-1)(x+2)(x-3)}\) is given by. \(A+\frac{B}{2 x-1}+\frac{C}{x+2}+\frac{D}{x-3}\), then the value of \(C\) isAP EAMCET 2022 Easy
- The number of three digit numbers in which 9 appears only in one place isAP EAMCET 2018 Easy
- The area of the quadrilateral formed with the foci of the hyperbola \(\frac{x^2}{16}-\frac{y^2}{9}=1\) and its conjugate hyperbola is (in square units)AP EAMCET 2024 Easy
- If \(\hat{\mathbf{a}}, \hat{\mathbf{b}}\) and \(\hat{\mathbf{c}}\) are vectors with magnitudes 2,3 and 4 respectively, then the best upper bound of \(|\hat{\mathbf{a}}-\hat{\mathbf{b}}|^2+|\hat{\mathbf{b}}-\hat{\mathbf{c}}|^2+|\hat{\mathbf{c}}-\hat{\mathbf{a}}|^2\) among the given values isAP EAMCET 2014 Hard
More PYQs from AP EAMCET
- Two particles \(P\) and \(Q\) describe SHM of same amplitude \(a\) and same frequency \(f\) along the same straight line. The maximum distance between the two particles is \(a \sqrt{2}\). The phase difference between the particle isAP EAMCET 2021 Medium
- \(A\) force \(\mathbf{F}=(5 \hat{\mathbf{i}}+4 \hat{\mathbf{j}}) \mathrm{N}\) acts on a body and produces a displacement \(s=(6 \hat{\mathbf{i}}-5 \hat{\mathbf{j}}+3 \hat{\mathbf{k}}) \mathrm{m}\). The work done by the force isAP EAMCET 2020 Easy
- The de Broglie wavelength of an electron with kinetic energy of 2.5 eV is (in m )
\(\left(1 \mathrm{eV}=1.6 \times 10^{-19} \mathrm{~J}, m_{\mathrm{e}}=9 \times 10^{-31} \mathrm{~kg}\right)\)AP EAMCET 2024 Easy - The angle between the curves \(y^2=2 x\) and \(x^2+y^2=8\) isAP EAMCET 2024 Medium
- A spring of \(5 \times 10^3 \mathrm{Nm}^{-1}\) spring constant is stretched initially by 10 cm from unstretched position. The work required to stretch it further by another 10 cm isAP EAMCET 2024 Easy
- A simple pendulum of length \(\frac{10}{3}\) meter with a bob of mass \(3 \mathrm{~m}\) is hanging freely from a rigid support. A bullet of mass ' \(\mathrm{m}\) ' is fired with a velocity \(50 \mathrm{~ms}^{-1}\) from the ground at an angle ' \(\theta\) ' with the horizontal. When the bullet is at its highest point of its trajectory, it collides head on with the bob of the pendulum and gets embedded in the bob. After collision, if the pendulum moves through a maximum angle of \(120^{\circ}\), then the value of ' \(\theta\) ' is \(\left(\mathrm{g}=10 \mathrm{~ms}^{-2}\right)\)AP EAMCET 2017 Medium