A page of text is analysed, and of the 150 words on it, 30 are nouns, 10 of which start with a vowel. Of the words that are not nouns, 85 of them do not start with vowels.

Question

A page of text is analysed, and of the 150 words on it, 30 are nouns, 10 of which start with a vowel. Of the words that are not nouns, 85 of them do not start with vowels.
a. If the word on the page is chosen at random, what is the probability that it is a noun?
b. How many words on the page start with vowels.

Can you please tell me if i would also use a venn diagram or a two way table thanks

PsyDAG · Answer

a. 30/150 = ? b. 10 + (120-85) = ?