A customer buys a $463.38 entertainment device from a department store. The department store sells 2-year warranties for the purchase for $38 and, based on past recor estimates that there a 5.6% chance that the warranty will be used to replace a broken device. Calculate the expected value of the store's profit on each one of these warrant sold. Use two decimal place accuracy.

Approximately 1 percent of women ages 40-50 have breast cancer. A woman has a 84 percent chance of a positive test from a mammogram given she has breast cancer (a true positive result). A woman has a 7 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.

Approximately 1 percent of women ages 40-50 have breast cancer. A woman has a 95 percent chance of a positive test from a mammogram given she has breast cancer (a true positive result). A woman has a 15 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 Total Has 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.

During the first half of the year, 686 patients were admitted to the cardiovascular care unit. Of these, 79 were readmissions. What percentage were readmitted? (compute to two decimals) ______%

Approximately 1.4% is not correct

The probability of an alarm clock failing is 4.7%.  What is the probability of two such alarm clocks failing? Show the calculation you did to get your answer and express it as a 3-place decimal.

A student has a semester GPA of 2.5 based on 15 credit hours. This included an F in a 4 credit hour class. If the student had withdrawn in time, what would be the revised GPA? Round to 2 decimal places. The revised GPA is

A charity organization is selling $4 raffle tickets as part of a fund raising program. They are selling 5000 tickets. The one winner will get a boat worth $3200. value? Report the answer to the nearest cent. If you buy one ticket, what is your expected

In recent years, due to low interest rates, many homeowners refinanced their home mortgages. Linda Lahey is a mortgage officer at Down River Federal Savings and Loan. Below is the amount refinanced for 20 loans she processed last week. The data are reported in thousands of dollars and arranged from smallest to largest. 59.2 59.5 61.6 65.5 66.6 72.9 74.8 77.3 79.2 83.7 85.6 85.8 86.6 87.0 87.1 90.2 93.3 98.6 100.2 100.7 Click here for the Excel Data File a. Find the median, first quartile, and third quartile. (Enter your answers in thousands and round your answers to 2 decimal places.) Median First quartile Third quartile b. Find the 26th 26th Percentile 83rd Percentile and 83rd percentiles. (Enter your answers in thousands and round your answers to 2 decimal places.)

"Save today by switching to SOAR!" is the slogan for SOAR, a cell phone service provider. Logan wants to estimate how much money customers who switch to SOAR save on their monthly bill. He surveys 75 people who have recently switched to SOAR and asks each one how much they are saving in their monthly bill as a result of the switch. He finds the average savings of the sample to be $19.03 and historical records indicate that o = $4.71 What is the standard error in estimating monthly phone bill savings? 0.895 0.544 4.710 0.236