Math 123 Final Exam Review

What is the probability a person chosen at random is male and widowed?

Chris makes $85,000 a year and Pat makes $42,000 a year. Which statement is true?

Choose the best response.

A countertop is 990 square inches. How many square feet is that?

Which is larger, 2.3 cubic meters or 63 cubic feet?

Mean 95, s.d. 13, what percent are less than 70?

6500 miles of sidewalks in NYC, each sidewalk square is 3 feet long, how many sidewalk squares?

Formula for 30-year mortgage you can afford at 5.3% APR paying $935 a month.

What is this student's final grade?

Mean 35 inches, s.d. 2.8 inches, what percentile of heights is 40 inches?

93.2% of statistics are made up on the spot. Out of 765,124 statistics, how many are made up?

Model: A diner charges $1 for a hamburger on a bun and $0.50 for each additional ingredient.

Describe the distribution of the graph.

If a person chosen at random is female, what is the probability she is married?

Volume of cylinder with radius 5 feet and depth 18 inches.

Given a histogram of survey results, how could you find the sample size?

A drug dosage is 8 mg per kg per day, 4 doses a day. How much per dose for a 35-pound child?

Students scored 20, 85, 97, 56, 79, 87, and 63 on a test. What was the median score?

Volume of rectangular box with length 1.3 meters, width 0.9 meters, and height 1.5 meters.

Weight distribution normal, mean 16.3 pounds, s.d. 0.7 pounds. Weight range of middle 95%?

What is the probability a person chosen at random is married?

Normal distribution, mean $3150, s.d. $295. Z-score for $3000?

Choose the correct model.

17,500 decigrams is how many kilograms?

A house is valued at $257,000, up 17% from its previous appraisal. What was its value before?

How would you label a normal curve with a mean of 37 and standard deviation 3?

How much CO₂ is produced by driving 500 miles if your car gets 35 miles per gallon?

What is the probability a person chosen at random is divorced or female?

An appliance uses 230 watts. How much CO₂ is produced by using the appliance for 24 hours?

Choose the best answer.