Question

A letter is choosen from English alphabet. find the probability of the letters being (a)A vowel (b) a letter comes after p (c)A vowel or a consonent (d)not a vowel​

Answer 1

Answer:

No. of vowels in English alphabet = 5

No. of letter that comes after p = 10

No. of consonant = 21.

Probability (chance) of something happening = Number of successful outcomes/ Number of possible outcomes.

Step-by-step explanation:

(a) Probability = 5/26

(b) Probability = 10/26 = 5/13

(c) Probability = 26/26 = 1

(d) Probability = 21/26.

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Answer 2

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a. No. of vowels(possible outcomes)= 5 ( a,e,i,o,u)

No. of total outcomes = 26

P (E) = No . of possible outcomes / Total outcomes

= 5/26

= 0.192------

= 0.19 ( approximately)

b. No. of possible outcomes ( after letter p)= 10 ( q,r,s,t,u,v,w,x,y,z)

No . of total outcomes = 26

P (E) = 10/26

= 0.384-----

= 0. 38 ( approximately)

c. Here,

All alphabets = vowels + constants

= 26

so here probability of getting vowel or constant

P (E) = 26/26

= 1

d. No. of possible outcomes ( not a vowel) = 21

No. of total outcomes = 26

P (E) = 21/26

=0.807--

=0.81 ( approximately).

Note :

All remember that probability of an event lies between 0 and 1.