An unbiased coin is tossed 1 times. Let X denote the number of times head occurs. If P (X=4), P (X = 5) and P (X 6) are in AP, then the value of n can be (a) 7, 14 (c) 12,7 (b) 10,14 (d) none of these

An unbiased coin is tossed 1 times. Let X denote the number of times head occurs. If P (X=4), P (X = 5) and P (X 6) are in AP, then the value of n can be (a) 7, 14 (c) 12,7 (b) 10,14 (d) none of these

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.2: Arithmetic Sequences

Problem 51E

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An unbiased coin is tossed 1 times. Let X denote the
number of times head occurs. If P (X=4), P (X = 5) and
P (X 6) are in AP, then the value of n can be
(a) 7, 14
(c) 12,7
(b) 10,14
(d) none of these

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