A variable is normally distributed with mean 19 and standard deviation 4. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed. a) Find the area to the left of 22. b) Find the area to the left of 14. c) Find the area to the right of 17.
A variable is normally distributed with mean 19 and standard deviation 4. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed. a) Find the area to the left of 22. b) Find the area to the left of 14. c) Find the area to the right of 17.
A variable is normally distributed with mean 19 and standard deviation 4. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed. a) Find the area to the left of 22. b) Find the area to the left of 14. c) Find the area to the right of 17.
A variable is normally distributed with mean 19 and standard deviation 4. Use your graphing calculator to find each of the following areas. Write your answers in decimal form. Round to the nearest thousandth as needed.
a) Find the area to the left of 22. b) Find the area to the left of 14. c) Find the area to the right of 17. d) Find the area to the right of 24. e) Find the area between 14 and 27.
Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.
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