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How many times must a man toss a fair coin so that the probability of having at least one head is more than 90%?

Asked by Kumar Upendra Akshay 03/02/2015 Last Modified 03/02/2015

10 Answers

Learn Class XI-XII Tuition (PUC)

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Related Questions

When an electron jumps from the nth (higher orbit) orbit to the pth orbit (lower orbit), the difference of energy is given by the equation __________. (h¦ = En – Ep, h¦ = En + Ep, h¦ = E, h¦ = Lp)

h = En - Ep

Narendra Kumar

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In p-type materials __________. (Holes are majority carriers, Electrons are majority carriers, Electrons are minority carriers, None of these)

holes are majority charge carriers

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The study of the spectrum of characteristic X-rays helps us to __________. (Measure the energy of the incident electrons, measure the wavelength of the incident electrons, measure the energy of the emitted x-rays, identify the element of which the target is made)

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. Force on a charged particle moving in a magnetic field is given by the equation F = qvbsinq. Quantities mutually perpendicular are __________. (V and B, F and v, F and B, None

None

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What is log 1 & Why?

log 1 with any base is zero... why? Just because anything power Zero is 1. Obviously base can't be 1 and should be > 0.

Velocity Education Academy

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Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

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Some important numericals on Colombs law are:- Q1- Two charges each of -2μC AND +6μC are seperated by a distance 1mm. find colombian force between them. Q2- Three charges each of q are placed...

S K Singh

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Class 11th - Conic sections

Determine the co-ordinates (x,y) of foci for given parabola. y2 = 2(x-1)

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Vedic Mathematics for Multiplication of two 2-digited numbers

Vedic Mathematics is a very powerful tool for us to get quick calculations For Multiplication of two 2-digited numbers, we can follow FOIL technique. If you want to multiply 74×36(let's present...

Naimish K.

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WAVE OPTICS

Linear Superposition and Interference The Double-Slit Experiment Interference in Thin Films Interferometers Interference and Diffraction Diffraction and Spatial Resolution Diffractive Spectral Dispersion:...

Dipankar Dhar

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Solution to a integration problem

∫ x^4 / ( x² + 1 ) dx As the degree of numerator is higher than that of the denominator, let's divide x^4 by ( x² + 1 ). = ∫ x² - 1 + 1/(x² + 1 ) dx = ∫ x² dx - ∫1•dx + 1/ ( 1 + x² ) dx =

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