Variability — Cumulative exam Answers

A supervisor finds the mean number of miles that the employees in a department live from work. He finds and . Which mileage is within a z-score of -1.5?

These data tables show sales of the Earn a Million-a-Day At Home video. Read the table, and then examine the graphs below. Week 1 2 3 4 5 Sales 252 246 265 276 280 Graph A Graph B Suppose you were a sales representative for the video and wanted to convince stores to stock more copies. Which graph would you use? Why?

The scores on the last math quiz are summarized in the following frequency table: Score 10 9 8 7 6 5 4 3 2 1 0 Frequency 6 7 5 3 2 1 1 0 0 0 0 The information is then put into the following histogram: Calculate the mean, median, mode, and midrange of this quiz distribution and explain whether the distribution is skewed to the left or to the right.

Stan has made a $125.30 monthly deposit into an account that pays 1.5% interest, compounded monthly, for 35 years. He would now like to draw a monthly salary from the account. Determine the amount that Stan can withdraw each month for 20 years, if he plans on not having anything in the account at the end of the 20 year period and no future deposits are made to the account.

Consider today’s stock listing for Rayje Clothiers, shown below.52 wk High52 wk LowSymbolDiv.CloseNet Change225.80169.96RAJ25.10200.4313.74Today, you sold the 459 shares of Rayje Clothiers that you purchased yesterday. How much profit did you make?

An investor buys 400 shares of stock in a fund when the net asset value is $19.62 and the offer price is $19.84. The investor sells these shares when the net asset value is $43.19 and the offer price is $43.56. Determine the amount of profit the investor earns.

Carmen buys 153 shares of Cawh Consolidated Banks, each of which pays a constant yearly dividend of $7.14. After six years, how much has Carmen received in dividends?

Make a circle graph for each set of data. Top Fitness Activities in America Activity Participants (millions) Fitness Walking 81.3 Swimming 59.3 Exercising with equipment 43.2 Biking 42.5 Aerobics 27.2 Basketball 27.2 Source: Scholastic Kid’s Almanac a. c. b. d. Please select the best answer from the choices provided

Elly buys 75 shares of stock in a mutual fund for a total investment of $450. She sells 50 shares of her stock for total proceeds of $400. Determine if Elly made a profit or loss, and how much per share.

Jim and Stephanie just got married and are thinking about changing their health care insurance plans to be more affordable. Currently, both Jim and Stephanie are insured through their own employers. Jim’s employer pays 42% of his $378 monthly premium. His insurance plan will also pay for 23% of the $345 premium for additional beneficiaries. Stephanie’s employer pays 35% of her $298 monthly premium but offers to pay an extra 10% of her premium for each beneficiary Stephanie adds to her plan. Her employer would then pay 30% of the $349 premium for each additional beneficiary.Insurance Jim's Employer BeneficiaryMonthly PremiumEmployer ContributionJim$378 42%Additional (each)$345 23% Stephanie's EmployerBeneficiaryMonthly PremiumEmployer ContributionStephanie$298 35% (+10% for each additional beneficiary)Additional (each)$349 30%Which would be the most economical way for the couple to purchase health insurance?

Eva is 29 years old and has 2 children, ages 3 and 5. She makes $48,500 a year. Eva decides to buy a $400,000 10-year term policy and then renew the policy for another ten years afterwards. To renew the policy the insurance company charges an extra 40% to her premium rate. Given the options below, assess whether Eva made a wise decision.

Researchers compare the body composition of cattle feeding on a grain diet with that of cattle feeding on a grass diet. This method of gathering data is classified as

Ron is 25 years old and is retiring at the age of 65. When he retires, he will need a monthly income of $4,123 for 20 years. If Ron contributes 10% of his monthly income to a 401(k) paying 5.5% compounded monthly, will he reach his goal for retirement given that his monthly income is 3,142.23? If he does not make his goal then state by what amount he will need to supplement his income. Round all answers to the nearest cent.

Gerald would like to add a dental and vision option to the health insurance plan he purchased through his employer. In addition to the 65% of Gerald’s $345 monthly health insurance premium, his employer has offered to pay 50% of a $38 monthly dental premium and 75% of a $23 monthly vision premium. If Gerald adds both the dental and vision options to his insurance plan, how much will he pay each month towards health insurance?Soopergood InsuranceOptionMonthly PremiumEmployer ContributionHealth Insurance$345 65%Dental$38 50%Vision$23 75%

You have decided to purchase a car for $25,625. The credit union requires a 10% down payment and will finance the balance with a 9% annual interest loan for 36 months. The sales tax in your city is 7.5%, and the license and title charges are $175.13. What is the total purchase price of the car including tax, license, and title? Round your answer to the nearest cent.

In many cases, lenders allow homeowners to include their homeowners insurance premium with their monthly mortgage payment. Tim’s home is worth $279,500. If his homeowners insurance premium is $0.33 per $100, how much is added to his monthly mortgage payment for insurance?

You placed a 13.2% down payment on a new home. Given that the amount of the down payment was $25,623.10, determine the price of the home. Round your answer to the nearest cent.

Calculate the monthly lease payment for a 36-month lease on a car with a $29,000 MSRP, a 79% residual value, and a money factor of 0.00365.

You have just inherited $150,261 from a trust that has matured. You would like to invest the total amount into an account that pays you an annual compounded interest rate of 9.1%, and you would like to make annual withdrawals over the next 20 years such that by the end of this 20 year period, the amount remaining in the account will be zero dollars. Determine, from the given information, the amount of the annual withdrawals. Round to the nearest cent.

The spinner above is used in a game. What is the theoretical probability of the given event with one spin? a. c. b. d. Please select the best answer from the choices provided