4 letters are typed, without repetition. what is the probability that all 4 will be vowels? write your answer as a percent. round your answer to three decimal places

2/13; 15.38%; 0.154

Step-by-step explanation:

Since total number of letters in the alphabet is equal to 26, this will give the total outcome.

If 4 letters are typed, without repetition, the expected outcome is 4 since there are no repetition.

Probability = expected number of outcome/total number of outcome

Probability that all 4 will be vowels will be;

P(all vowels) = 4/26 = 2/13

Expressing 2/13 as percent, we will have;

2/13 × 100

= 200/13

= 15.38%

Expressing 2/13 as decimal will give;

2/13 = 0.1538

2/13 = 0.154( to 3 decimal places)

Note that the third digits after the decimal point 3 is rounded off to 4 because the number succeeding it is 8 which greater than 4

the answer is c hope it

step-by-step explanation:

y=sec x is the correct answer

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