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Three letters are chosen at random without replacement from the word HEART in a row.

0 votes

 Find the probability that?

a) the letter H is chosen 


the answer is 0.6 


I want to know how to get that answer 

b) both vowels are chosen 

PLEASE HELP ME !

asked Jul 11, 2014 in ALGEBRA 1 by anonymous

1 Answer

0 votes

The word is HEART.

a) Number of ways that the one letter H from 3 letters without replacement is image.

Number of ways that the letter H is chosen from all the letters without replacement is image.

Probality of selecting letter H is image.

 

b) Vowels in the word HEART are E and A.

Probality of choosing both vowels is image=0.4

 

answered Jul 11, 2014 by joly Scholar
edited Jul 11, 2014 by moderator

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