376 Words2 Pages

University of Phoenix Material
Week Two Quiz
1. IN A GALLUP POLL OF 1,038 ADULTS, 540 SAID THAT SECOND-HAND SMOKE IS VERY HARMFUL. WHAT IS THE PERCENTAGE OF ADULTS WHO SAID SECOND-HAND SMOKE IS VERY HARMFUL?
Show your work:
Answer: 540/1038=0.5202312x100=52.023=52.02%= 52%
2. The first class in a relative frequency table is 50–59 and the corresponding relative frequency is 0.2. What does the 0.2 value indicate?
Answer: 0.2 is equal to 1/5 or 20%, 0.2 indicates 20% of the data values are in this particular interval.
3. When you add the values 3, 5, 8, 12, and 20 and then divide by the number of values, the result is 9.6. Which term best describes this value: average, mean, median, mode, or standard deviation?
Answer: 9.6 is the average of the numbers listed and is also the mean of this data.
4. Answer the next four questions using the following set of numbers. Show your work for all questions:
2.0, 3.7, 4.9, 5.0, 5.7, 6.7, 8.5, 9.0
What is the range of the above values? Range is the difference between the lowest value and the highest value.
The range of the listed numbers is 9.0-2.0=7.0.
What is the median of the above values? The median is calculated by adding together the two middle numbers and dividing by 2 (2 values). The numbers must be in ascending or descending order.
5.0+5.7=10.7/2=5.35=5.4 is the median of the numbers listed in this question.
What is the mean of the above values? To calculate the mean add all of the values in the data together and divide by the number of values.
2.0+3.7+4.9+5.0+5.7+6.7+8.5+9.0=45.5/8=5.6875= 5.7 is the mean of the numbers above.
What is the mode of the above values? The mode is the value that occurs most often. There is no mode for the values listed in this question because all of the values only appear one

Related

## Summary: Module 08 Exercise

586 Words | 3 PagesModule 08 Exercise Each problem is worth 5 points for a total of 50 points. Please enter your answers and calculations on the third page using the Equation Editor. 1. Determine whether (-3,1) is a solution of the following system of equations: y=-13x 3y=-5x-12 2. Solve using the substitution method: r=-3s r+4s=10 3.

## Math Test Bus2023

2716 Words | 11 Pages1.328 b. 2.539 c. 1.325 d. 2.528 ANSWER: a -go to the t-dtistrubution and use α=0.20 or confidence of 80% and use dof=19 3. Read the t statistic from the table of t distributions and circle the correct answer. A one-tailed test (upper tail), a sample size of 18 at a .05 level of significance t = a. 2.12 b.

## Mat 540 Week 1 Essay

366 Words | 2 PagesThe number of terms is n=10, the first term is a1=525, the common ratio is r = 1.05. Although the initial balance is $500, a1 = $525 because the first term of the sequence is at the end of the first year, so it must include the interest on the $500. The ending balance can now be found An = a1(rn-1) A10 = 525(1.05)9 A10 = 525(1.55132822) A10 = 814.447316 814.447316 can be rounded to 814.45, thus showing that the ending balance after 10 years is $814.45. The formula to solve this problem was found on page 229 in in Mathematics in Our World (Bluman,

## Economics Test Essay

2278 Words | 10 PagesAdd Supply 2 to left of Supply 1. Add Supply 2 to right of Supply 1. Points earned on this question: 0 Question 2 (Worth 5 points) (01.04 MC) Graph shows values along the horizontal axis and vertical axis. Coordinates are plotted to indicate two upward-sloping diagonal lines and two downward-sloping diagonal lines. Line 1 is a downward sloping line with point S at 300, 300 and Point U at 200, 400.

## Statistics Final Exam Paper

506 Words | 3 PagesQuiz 2 1- When two events A and B are independent the intersection of the events can be found by multiplying the probabilities of the individual events. (5 pts) True 2- Based on a 15 observations shown below, determine the Q25%, median, Q75% and the mean. Based on your analyses, which direction the data is skewed (i.e. right or left or neither)? (5 pts) 25, 18, 32, 19, 42, 14, 36, 48, 30, 25, 18, 44, 51, 28, 36, 27, 39, 16 14, 16, 18, 18, 19, 25, 25, 27, 28, 30, 32, 36, 36, 39, 42, 44, 48, 51=548 Median = 29 28+30=58/2=29 Mean = 30.44 548/18=30.44 Q25= 20.50 Q75= 38.25 Skewed to the right 3-The following box plot is based on a recent study on daily charges for a hospital semiprivate room in Louisiana.

## Qnt 561 Week 6

1144 Words | 5 PagesSo, 2000 = 30000/Square root of sample size. Solving for the Square root of sample size, we get Square root of sample size = 30000/2000 = 15. Taking its square, the sample size is found as 225. Chapter 9 Exercise 1 No it is not a good defense. If you choose 40 random employees from the corporation, the standard error would equal 6/Square root of 40 = .95 days.

## Lab Week 1

375 Words | 2 PagesThe formula S = C (1 + r)^t models inflation, where C = the value today r = the annual inflation rate S = the inflated value t years from now Use this formula to solve the following problem: If the inflation rate is 3%, how much will a house now worth $510,000 be worth in 5 years? 510000(1ⓜ┤+ⓜ0.03)^5 =591229.777893 591229.77789300005 Write 6 = log2 64 in its equivalent exponential form. 26=64 Write 8y = 300 in its equivalent logarithmic form. log 300 = log 8y log(3*100)=log 8y log 3+log100=log 8+log y log 3+2=log 8+log y log 8-log 3=log y-2 By log(A/B)=log A-log B, log (8/3)=log y-2 Hurricanes are some of the largest storms on earth. They are very low pressure areas with diameters of over 500 miles.

## Module 2 Exercise 2.1

339 Words | 2 Pages0.125 4. The formula S = C (1 + r)t models inflation, where: a. C = the value today b. r = the annual inflation rate c. S = the inflated value t years from now Use this formula to solve the following problem: 4. If the inflation rate is 3 percent, how much will a house now worth $510,000 be worth in 5 years? $591,229 5.

## Loryn Essay

1145 Words | 5 PagesMatch each with the expression or equation which best describes it. Potential Matches: 1: a + b = b + a 2: (a + b) + c = a + (b + c) 3: a(b + c) = ab + ac 4: This expression has 4 of them: 3a + b – 5 + 8d. 5: This is what the 5 in the term 5xy is called. Answers: ___: Term ___: Coefficient ___: Associative Property ___: Distributive

## Year 12 Math Question Paper

578 Words | 3 PagesRevision Year 12 Maths B, Term 4 1. The function, y=3cosx+5 has an amplitude of 3 and a mean value of 5. Using these values, the range can be found to be 2≤y≤8 . Find the range of the function y=4cosx+7 2. Find the exact value of tan600 (Hint, draw a standard triangle to help) 3.

### Summary: Module 08 Exercise

586 Words | 3 Pages### Math Test Bus2023

2716 Words | 11 Pages### Mat 540 Week 1 Essay

366 Words | 2 Pages### Economics Test Essay

2278 Words | 10 Pages### Statistics Final Exam Paper

506 Words | 3 Pages### Qnt 561 Week 6

1144 Words | 5 Pages### Lab Week 1

375 Words | 2 Pages### Module 2 Exercise 2.1

339 Words | 2 Pages### Loryn Essay

1145 Words | 5 Pages### Year 12 Math Question Paper

578 Words | 3 Pages