MATH 225N Week 5 Understanding Normal Distribution; complete A Grade solutions guide

MATH 225N Week 5 Understanding Normal Distribution; complete A Grade solutions guide-Question: Lexie averages 149 points per bowling game with a standard deviation of 14 Suppose Lexie’s points per bowling game are … Let X= the number of points per bowling game. Then X∼N(149,14). 2. Question: Suppose X∼N(18,2), and x=22. Find and interpret the z-score of the standardized normal random variable. 3. Question: Suppose X∼N(5,1.5), and x=11. Find and interpret the z-score of the standardized normal random variable. 4. Isabella averages 17 points per basketball game with a standard deviation of 4 Suppose Isabella’s points per basketball game are … Let X= the number of points per basketball game. Then X∼N(17,4). 5. Question: Suppose X∼N(5,1.5), and x=9. Find and interpret the z-score of the standardized normal random variable 6. Question: Suppose X∼N(10,5), and x=11.5. Find and interpret the z-score of the standardized normal random variable. 7. Question: Annie averages 23 points per basketball game with a standard deviation of 4 Suppose Annie’s points per basketball game are … Let X= the number of points per basketball game. Then X∼N(23,4). 8. Question: Suppose X∼N(9,5), and x=13.5. Find and interpret the z-score of the standardized normal random variable. 9. Question: Rosetta averages 148 points per bowling game with a standard deviation of 14 Suppose Rosetta’s points per bowling game are … Let X= the number of points per bowling game. Then X∼N(148,14). 10. Question: Suppose X∼N(5,2), and x=7.5. 11. Question: Jerome averages 16 points a game with a standard deviation of 4 Suppose Jerome’s points per game are normally distributed. Let X = the number of points per game. Then X∼N(16,4). 12. Question: John averages 58 words per minute on a typing test with a standard deviation of 11 words per minute. Suppose John’s words per minute on a typing test are … Let X= the number of words per minute on a typing test. Then X∼N(58,11). 13. Question: Suppose X∼N(5,0.5), and x=16. 14. Question: Gail averages 64 words per minute on a typing test with a standard deviation of 5 words per minute.