QUESTION 1 1.1) A normal distribution of scores has a standard deviation of 10. Find the z-score corresponding to each of the following values: a) A score that is 20 points above the mean. b) A score that is 10 points below the mean. c) A score that is 15 points above the mean d) A score that is 30 points below the mean. 1.2) Draw the normal distribution graph with all the above information QUESTION 2 2.1) A normal distribution of scores has a standard deviation of 10. Find the z-scores corresponding to each of the following values: a) A score of 60, where the mean score of the sample data values is 40. b) A score that is 30 points below the mean c) A score of 80, where the mean score of the sample data values is 30 d) A score of 20, where the mean score of the sample data values is 50 2.2) Draw the normal distribution graph with all the above information. QUESTION 3 True or false a) All normal distributions are symmetrical b) All normal distributions have a mean of 1.0 c) All normal distributions have a standard deviation of 1.0 d) The total area under the curve of all normal distributions is equal to 1