1. [-/8 Points] DETAILS BBBASICSTAT8 7.1.001. MY NOTES Which, if any, of the curves in the figure below look like a normal curve? If a curve is not a normal curve, tell why. (a) ( b ) (c) (d) curve (a) ---Select--- curve (b) ---Select--- curve (c) ---Select--- curve (d) ---Select---Which, if any, of the curves in the figure below look like a normal curve? If a curve is not a normal curve, tell why. (a) ( b ) ( C ) (d) curve (a) ---Select--- :.. . ...: not normal; not smooth normal not normal; not bell-shaped not normal; skewed left not normal; dips below horizontal axis ---Select--- C curve (d) ---Select---2. [-/6 Points] DETAILS BBBASICSTAT8 7.1.002.MI. MY NOTES PRACTICE ANOTHER Look at the normal curve below, and find u, u + o, and o. M= u to= O = 31 33 35 37 3. [-/6 Points] DETAILS BBBASICSTAT8 7.1.005. MY NOTES (a) What percentage of the area under the normal curve lies to the left of M? % (b) What percentage of the area under the normal curve lies between u - o and u + o? % (c) What percentage of the area under the normal curve lies between u - 36 and u + 30? %4. [-I4 Points] BBBASICSTAT8 7.1.007. PRACTICE ANOTHER Assuming that the heights of college women are normally distributed with mean 64 inches and standard deviation 1.5 inches, answer the following questions. (Hint: Use the gure below with mean [4 and standard deviation 0'.) Am Under a Normal Curve 2.35% 2.35% p-30 \"-2.: 11-11 in p+a \"+2., \"+3.: lg 959s 99.5% (a) What percentage of women are taller than 64 inches? % (b) What percentage of women are shorter than 64 inches? "/0 (c) what percentage of women are between 62.5 inches and 65.5 inches? % (d) What percentage of women are between 61.0 and 67.0 inches? % 5. [-/1 Points] BBBASICSTAT8 7.2.003. What is the value of the standard score for the mean of a distribution? 6. [/1 Points] BBBASICSTATS 7.2.008. PRACTICE ANOTHER Raul received a score of 73 on a history test for which the class mean was 70 with a standard deviation of 7. He received a score of 74 on a biology test for which the class mean was 70 with standard deviation 8. On which test did he do better relative to the rest of the class? " biology test '\" history test the same 7. [-/18 Points] DETAILS BBBASICSTAT8 7.2.009.MI. MY NOTES PRACTICE ANOTHER The college physical education department offered an advanced first aid course last summer. The scores on the comprehensive final exam were normally distributed, and the z-scores for some of the students are shown below. Robert 1.12 Juan 1.80 Haley -2.06 Joel 0.00 Jan -0.76 Linda 1.58 (a) Which of these students scored above the mean? (Select all that apply.) Robert Juan Haley Joel Jan Linda (b) Which of these students scored on the mean? (Select all that apply.) Robert Juan Haley Joel Jan O Linda (c) Which of these students scored below the mean? (Select all that apply.)(c) Which of these students scored below the mean? (Select all that apply.) Robert Juan Haley Joel O Jan Linda (d) If the mean score was u = 152 with standard deviation o = 25, what was the final exam score for each student? (Round your answers to the nearest whole number.) Robert Juan Haley Joel Jan Linda 8. [-/1 Points] DETAILS BBBASICSTAT8 7.3.001.S. MY NOTES PRACTICE ANOTHER Consider a normal distribution with mean 22 and standard deviation 5. What is the probability a value selected at random from this distribution is greater than 22? (Round your answer to two decimal places.) LO USE SALT9. [-/1 Points] DETAILS BBBASICSTAT8 7.3.002. MY NOTES PRACTICE ANOTHER Suppose 80% of the area under the standard normal curve lies to the right of z. Is z positive or negative? positive negative 10. [-/1 Points] DETAILS BBBASICSTAT8 7.3.005.MI.S. MY NOTES PRACTICE ANOTHER Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) LO USE SALT M = 8;0 =6 P(5 S x S 14) = 11. [-/1 Points] DETAILS BBBASICSTAT8 7.3.007.S. MY NOTES PRACTICE ANOTHER Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.) In USE SALT M = 39; 0 = 15 P(50 S x S 70) =