257 20- 15- 10- 5- 40 45 50 55 60 85 70 75 80 85 95 100 105 110 115 120 125 130 OK Frequency

Approximately 1 percent of women ages 40-50 have breast cancer. A woman has a 80 percent chance of a positive test from a mammogram given she has breast cancer (a true positive result). A woman has a 12 percent chance of a positive test from a mammogram given she does not have breast cancer (a false positive result). Complete the table below, then answer the questions below the table. Give all answers as decimals to 4 decimal places. Positive test result Negative test result TotalHas breast cancer Does not have breast cancer Total What is the probability a woman has breast cancer given that she just had a positive test? Give answer as decimals to 4 decimal places.

Illustration 15.24. A correlation coefficient of 0.5 does not mean that 50% of the variauce is explained. Comment.

The table gives the frequency distribution for the final grades in a course. (Here A=4, B=3, C=2, D=1,F=0.) Determine the percentage of students who get a B or higher. Grade 0 1 2 3 4 Number of Occurrences 3 6 4 3 How could the answer be found? OA. Add the number of occurrences for each grade that is a B or higher. Then, divide by the number of grades. OB. Find the probability of each grade. Then, add them together to find the percent OC. Find the probability of each grade that is a B or higher. Then, find the average of those probabilities. OD. Find the probability of each grade. Then, add the probabilities for the grades that are a B or higher together to find the percent. The percentage of students who get a B or higher is

Calculate ¯xx¯ (x-bar) for the data shown, to two decimal places x 8.3 8.7 5 5.5 26.6

Thank you, but would the first column on the histogram not be at a frequency of 3? Would you please now answer the remaining part of the question. Thanks for your help

How do I determine each individual time on this box plot? i dont know how Im supposed to answer the questions following without knowing each individual time.

Match each scatterplot shown below with the best desciption of its correlation. 880 000 Lo Select an answer Select an answer Select an answer

Briefly define: Power, Type I error, and Type II error.

The ages (in years) and helghts (in inches) of all pitchers for a beseball team are listed. Find the coefficient of variation for each of the two data sets. Then compare the results. -Click the Icon to view the data sets. CV. %D Round to one decimal place as needed.)