AP EAMCET · Maths · Probability
If the sum and product of the mean and variance of a binomial distribution are 15 and 54 respectively, then the number of trails in it is
- A 27
- B 54
- C 28
- D 81
Answer & Solution
Correct Answer
(A) 27
Step-by-step Solution
Detailed explanation
No solution. Refer to answer key.
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
- \[
\begin{aligned}
& \text { If } \int \cos x \cdot \cos 2 x \cdot \cos 5 x d x \\
& =A \sin 2 x+B \sin 4 x+C \sin 6 x+D \sin 8 x+k
\end{aligned}
\]
(where \(k\) is the arbitrary constant of integration), then \(\frac{1}{B}+\frac{1}{C}=\)AP EAMCET 2019 Hard - Solution of \(\frac{d y}{d x}=\frac{x \log x^2+x}{\sin y+y \cos y}\) isAP EAMCET 2003 Medium
- \(\mathbf{a}, \mathbf{b}, \mathbf{c}\) are non-coplanar vectors. If \(\begin{aligned} & \mathbf{a}+3 \mathbf{b}+4 \mathbf{c}=x(\mathbf{a}-2 \mathbf{b}+3 \mathbf{c})+y(\mathbf{a}+5 \mathbf{b}-2 \mathbf{c}) \\ & +z(6 \mathbf{a}+14 \mathbf{b}+4 \mathbf{c}), \text { then } x+y+z=\end{aligned}\)AP EAMCET 2022 Easy
- If and then consider the following statements:
Then which one of the following options is true?AP EAMCET 2018 Hard - A bag contains 5 black balls, 4 white balls and 3 red balls. If a ball is selected at random, the probability that it is a black or a red ball, isAP EAMCET 2002 Medium
- The differential equation corresponding to the family of parabolas whose axis is along \(\mathrm{x}=1\) isAP EAMCET 2025 Medium
More PYQs from AP EAMCET
- \(\cos ^2 76^{\circ}+\cos ^2 16^{\circ}-\cos 76^{\circ} \cos 16^{\circ}\) is equal toAP EAMCET 2002 Easy
- In \(\triangle \mathrm{ABC}\), if \(\triangle \mathrm{A}=90^{\circ}\), then \(2(r+\mathrm{R})=\)AP EAMCET 2018 Medium
- The number of oxygen atoms bonded to one phosphorous atom in \(\mathrm{P}_4 \mathrm{O}_6\) isAP EAMCET 2004 Medium
- \(8 \mathrm{~g}\) of a metal reacted with oxygen to form \(9 \mathrm{~g}\) of its oxide. What is the weight (in \(\mathrm{g}\) ) of the metal required to react with \(8 \mathrm{~g}\) of hydrogen? \((\mathrm{H}=1.0)\)AP EAMCET 2017 Easy
- If the co-ordinate axes are the bisectors of the angles between the pair of lines \(a x^2+2 h x y+b y^2=0\) where \(h^2>a b\) and \(a \neq b\), thenAP EAMCET 2002 Easy
- Angular width of central maximum of a diffraction pattern due to a single slit does not depend uponAP EAMCET 2023 Medium