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Understanding Statistical Regions 1

What percent of x values lie between –1σ and +1σ of the mean µ (within 1 standard deviations of the mean)?

What percent of x values lie between –2σ and +2σ of the mean µ (within 2 standard deviations of the mean)?

What percent of x values lie between –3σ and +3σ of the mean µ (within 3 standard deviations of the mean)? (Answer to the nearest tenth.)

What percent of x values lie at or below µ?

What percent of x values lie at or above µ?

What percent of x values lie between 0 and +1σ of the mean µ?

What percent of x values lie between –2σ and 0 of the mean µ? (Answer to the nearest tenth.)