The figure below shows a frequency and relative-frequency distribution for the heights of female students attending a college. Records show that the mean height of these students is 64.5 inches and that the standard deviation is 1.8 inches. Use the given information to complete parts (a) through (c). a. The area under the normal curve with parameters H = 64.5 and o = 1.8 that lies to the left of 63 is 0.2100. Use this information to estimate the percent of female students who are shorter than 63 inches. 21 % (Type an integer or a decimal. Do not round.) Frequency Height (in.) Relative freq. O f b. Use the relative-frequency distribution to the left to obtain the exact percentage of female students who are 60-under 61 0.0070 61-under 62 9 0.0314 shorter than 63 inches. 62-under 63 25 0.0871 % 63-under 64 62 0.2160 64-under 65 94 0.3275 (Type an integer or a decimal. Do not round.) 65-under 66 62 0.2160 66-under 67 25 0.0871 67-under 68 6. 0.0209 68-under 69 0.0070 287 1.0000

The figure below shows a frequency and relative-frequency distribution for the heights of female students attending a college. Records show that the mean height of these students is 64.5 inches and that the standard deviation is 1.8 inches. Use the given information to complete parts (a) through (c). a. The area under the normal curve with parameters H = 64.5 and o = 1.8 that lies to the left of 63 is 0.2100. Use this information to estimate the percent of female students who are shorter than 63 inches. 21 % (Type an integer or a decimal. Do not round.) Frequency Height (in.) Relative freq. O f b. Use the relative-frequency distribution to the left to obtain the exact percentage of female students who are 60-under 61 0.0070 61-under 62 9 0.0314 shorter than 63 inches. 62-under 63 25 0.0871 % 63-under 64 62 0.2160 64-under 65 94 0.3275 (Type an integer or a decimal. Do not round.) 65-under 66 62 0.2160 66-under 67 25 0.0871 67-under 68 6. 0.0209 68-under 69 0.0070 287 1.0000

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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