Acode is formed using four of these letters: a, b, i, k, n, o, and t. (note that the order of the letters in the code matters; for example, abik is a different code from baik.)
the size of the sample space is . the probability that the first three letters of the four-letter code are vowels is?

The size of the sample is 840.

The probability that the first three letters of the four-letter code are vowels is

Step-by-step explanation:

Th total number of letters given to form code of 4 letters = 7

Since, the order of the letters in the code matters, which means there is no repetition.

The total number of ways to form the code size =

Therefore, The size of the sample is 840.

Since, there are 3 vowels and rest of 4 letters are consonant.

The number of ways to form code such that the first three letters of the four-letter code are vowels =

The probability that the first three letters of the four-letter code are vowels is

=

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step-by-step explanation:

answer is because 4×10=40

and 98×4= is 392

40,392