Step-by-step explanation:
In the case of a discrete probability distribution of a random variable X, the mean is equal to the sum over every possible value weighted by the probability of that value; that is, it is computed by taking the product of each possible value x of X and its probability p(x), and then adding all these products together
The given terms can be divided into two sections. First section is for the numbers and the second one for the letters.
1st section: 1, 2, 3, and 4
2nd section: I, L, F
I is the 9th letter in the alphabet, L is the 12th letter, and F is the 6th letter in the alphabet.
The pattern observed:
I to L: 12 - 9 = 3
L to F: 6 - 12 = -6
Next letter should be +9. This means that the letter should be 9 places higher than F. The letter should be O which is the 15th letter.
D.
1 3/7 = 1.43
therefore from least to greatest it would need to be
1.38,1.4,1.43
or in the question
1.38, 1.4, 1 3/7
Therefore the answer would be D.
Hope this helps!
The correct answer it would be is 2,3,4
