Each letter in the word STATISTICS is written on an index card, then shuffled. One card is drawn at random. Let A = the card drawn is a vowel. Let B = the card drawn is the letter T.

Index cards labeled A, I, I, T, T, T, S, S, C, S.

There are 10 letters are in the word STATISTICS, 3 of which are vowels.

What is P(A)?
ANSWER IS ✔ 0.3

What is P(B)?
ANSWER IS 0.3

How many of the 10 letters are vowels or the letter T?
ANSWER IS ✔ 6

What is P(A or B)?
ANSWER IS ✔ 0.6

What is P(A) + P(B)?
ANSWER IS ✔ 0.6

ANSWERS ARE LISTED ABOVE