Question

Aliza has 3 different email accounts: Yahoo Mail, Gmail and Hotmail. Most of
her messages, in fact 70%, come into Yahoo Mail , whereas 20% come into
Gmail and the remaining 10% into Hotmail. Of the messages into Yahoo
Mail, only 1% are spam, whereas the corresponding percentages for Gmail
and Hotmail are 2% and 5%, respectively. What is the probability that a
randomly selected message is spam?

Answer 1

Answer:

I suppose 8 percent.⭐⭐⭐⭐⭐⭐⭐⭐