Answer the following questions using the z-score chart. (please type the answer)

4. In a certain country, the heights of men are normally distributed with a mean of 1.70 m and a standard deviation of 0.15 m. Doorways all have a height of 2.00 m. What percent of men in this country have to get used to ducking?

5. The maximum attention spans, in seconds, of 40 two-year-olds are normally distributed with a mean of 75 and a standard deviation of 10. How many of these toddlers will have an attention span of less than 71 s?