The density of air under ordinary conditions at 25°C is 1.19 g/L. How many kilograms of air is in a room that measures 11.0 ft × 11.0 ft and has an 10.0 ft ceiling? 1 ft = 12 in; 1 in. = 2.54 cm. (exactly); 1 L = 103 cm3

  What are the most important strengths and weaknesses of this study? Explain how these factors influence the quality, credibility, or interpretation of the findings? Be sure to support your evaluation with specific evidence from the article. Your response should be a minimum of 250 words.  

Solve the problem that involves computing expected values in a game of chance.A numbers game run by many state governments allows a player to select a three-digit number from 000 to 999. There are 1000 such numbers. A bet of $17 is placed on a number. If the number is selected, the player wins $1700. If any other number is selected, the player wins nothing. Find the expected value for the game.

Solve the problem.A survey of senior citizens at a doctor’s office shows that 52% of the seniors take blood pressure lowering medication and 42% take cholesterol lowering medication. 19% take both medications. What is the probability that a senior citizen takes either blood pressure or cholesterol lowering medication?

Find the odds.A number cube labeled with numbers 1, 2, 3, 4, 5, and 6 is tossed. What are the odds in favor of the cube showing an odd number?

Consider a political discussion group consisting of 4 Democrats, 6 Republicans, and 5 Independents. Suppose that two group members are randomly selected, in succession, to attend a political convention. Find the probability of selecting an Independent and then a Democrat.

Answer the question.The probability of rolling an even number on a die is . Does this probability mean that, if you roll the die two times, one even number will appear? If not, what does it mean?

The table shows the distribution, by age, of a random sample of 4000 moviegoers in a certain country aged 12 through 74. Use this distribution to solve the problem. Ages Number 12 – 24 1050 25 – 44 1540 45 – 64 760 65 – 74 650 If one moviegoer is randomly selected from this population, find the probability the moviegoer is not in the 12-24 age range.

List the elements in the sample space of the experiment.A box contains 10 red cards numbered 1 through 10. List the sample space of picking one card from the box.

Use the table to find the probability.The table shows the number of college students who prefer a given pizza topping. toppings freshman sophomore junior senior cheese 10 11 21 28 meat 21 28 11 10 veggie 11 10 21 28 Determine the probability a student prefers meat topping given that student is junior. Round to the nearest thousandth.