A variable is normally distributed with mean 36 and standard deviation 13. Use the Cumulative Z-Score Table to answer the following questions. Write your answers in decimal form using 4 decimal places. a) Find the area under the normal curve to the left of the data value 69.8. b) Find the area under the normal curve to the left of the data value 19.1. c) Find the area under the normal curve to the right of the data value 38.6.

Students in a statistics class took their first test. The following are the scores they earned. Fill in the stem-and-leaf plot below use the tens place as the stem and the ones place as the leaf. Describe the shape of the distribution. 73 84 95 91 98 97 90 74 74 82 63 79 82 88 74 88 67 81 83 69 73 95 91 94 86 56 94 62 a) Data were collected for            variable(s).     Is it appropriate to make a stem-and-leaf plot for this type of data and number of variables?      . b) Complete the stem-and-leaf plot below.       You must put commas between the leaves. Stems Leaves 5                   c) What shape is the stem-and-leaf plot above?

Solve the problem.The diameter of ball bearings produced in a manufacturing process can be explained using a uniform distribution over the interval 6.5 to 8.5 millimeters. What is the mean diameter produced in this manufacturing process? Select one: A. 8.0 millimeters B. 7.5 millimeters C. 8.5 millimeters D. 7.0 millimeters

Construct a scatter plot for the following data set. Solve for the correlation coefficient, r. Show your work and explain the steps you used to solve. Round your answer to the nearest thousandth. I 2 3 4 4 3 2 1