The average price of a personal computer (PC) is $949 If the computer prices are approximately normally distributed and $100, what is the probability that a randomly selected PC costs more than $1200 The least expensive 10 of personal computers cost less than what amount ...

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The average price of a personal computer (PC) is $949. If the computer prices are approximately normally

Question:

The average price of a personal computer (PC) is $949. If the computer prices are approximately normally distributed and σ = $100, what is the probability that a randomly selected PC costs more than $1200? The least expensive 10% of personal computers cost less than what amount?