MAT 126 Week 5 Quiz (Ash Course)
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Week 5
1. Question : Find the area under the normal distribution curve between z = 1.52 and z = 2.43.
2. Question : For the 20 test scores shown, find the percentile rank for a score of 86.
75 63 92 74 86 50 77 82 98 65 71 89 75 66 87 59 70 83 91 73
3. Question : If a student's percentile rank in a class of 400 students is 87, find the student's class rank.
4. Question : Find the value for the correlation coefficient r.
5. Question : Find the median.
2 27 38 55 49 9 53 34
6. Question : Find Q1, Q2, and Q3 for the data set below.
5.4 2.0 6.8 3.1 2.9 4.7 2.1 5.0 1.9 3.4
7. Question : Which statement is true for a statistical study?
8. Question : The average amount customers at a certain grocery store spend yearly is $636.55. Assume the variable is normally distributed. If the standard deviation is $89.46, find the probability that a randomly selected customer spends between $550.67 and $836.94.
9. Question : Which of the following is not a property of a normal distribution?
10. Question : The average hourly wage of employees of a certain company is $9.83. Assume the variable is normally distributed. If the standard deviation is $4.58, find the probability that a randomly selected employee earns less than $5.43.
11. Question : Use a scatter plot to deternine the relationship between the x values and the y values.
12. Question : If a student's rank in a class of 400 students is 44, find the student's percentile rank.
13. Question : Fran's percentile rank on an exam in a class of 500 is 85. Kelly's class rank is 60. Who is ranked higher?
14. Question : The area under a normal distribution curve that lies within one standard deviation of the mean is approximately ___.
15. Question : Find the area under the normal distribution curve to the right of z = –1.03.
16. Question : Find the area under the normal distribution curve to the right of z = –3.24.
17. Question : Armia's percentile rank on an exam in a class of 300 is 85. Sanjo's class rank is 42. Who is ranked higher?
18. Question : Determine whether a correlation coefficient of r = –0.405 is significant at the 5% level for a sample size of 22.
19. Question : Find the standard deviation.
44 46 33 10 50 27
20. Question : Find the median and the mean for the data set below.
5.4 2.0 6.8 3.1 2.9 4.7 2.1 5.0 1.9 3.4
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This Tutorial was purchased 6 times & rated A by student like you.
Week 5
1. Question : Find the area under the normal distribution curve between z = 1.52 and z = 2.43.
2. Question :&nb..

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Assignment:
Following completion of your readings, answer the following two questions from “Chapter 12 Supplement” of Mathematics in Our World.
Select one even problem from exercises 1 through 10 on page 810.
Select one even problem from exercises 11 through 22 on pages 811812...

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This Discussion will give you the opportunity to calculate or identify the three measures of central tendency. You will be asked to select an appropriate real life situation in which one measure would be more appropriate than the other two measures of center.
Select a topic of interest to..

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Week 4
1. Question : A single card is drawn from a deck. What is the probability of getting a queen or a king?
2. Ques..

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Assignment:
Following completion of your readings, complete exercise 4 in the “Projects” section on page 620 of Mathematics in Our World.
Make sure you build or generate at least five more Pythagorean Triples using one of the many formulas available online for doing this.
After ..

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This Discussion allows you to demonstrate your understanding of the similarities and differences between classical probability and empirical probability.
In your own words, describe two main differences between classical and empirical probabilities.
Gather coins you find around your..

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The purpose of this Discussion is to analyze a financial plan that portrays a somewhat typical budgeting scheme. You will calculate expenses, a mortgage payment, and the effects of interest and financing on your budget. Show your math work for every answer and identify the answers with words.
..

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Week 3
1. Question : Find the circumference and area of the circle if d = 30. Use = 3.14.
2. Question : ..

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Following completion of your weekly readings, complete the exercises in the “Projects” section on page 397 of Mathematics in Our World.
You should be concise in your reasoning. For Project #1, work only equations (a) and (c), but complete all 6 steps (af) as shown in the example.
For P..

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This Discussion tests your ability to use a ruler and convert from Standard English measure to Metrics. You will then apply your knowledge of the geometric measurements of area and volume through real world problems.
Choose a room in your house. Measure the length, the width, and the heig..

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This Discussion will concentrate on functions and graphs. Understanding the definitions of words is the essence of mathematics. When we understand the meaning of words, finding a solution is much easier because we know what task the problem is asking us to complete.
Part 1
In y..

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Week 2
1. Question : Multiply. 1B7twelve x 29twelve
2. Question : Find the value of 327 in the mod ..

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Following completion of your weekly readings, read “Are You Sure It’s Fat Free?” on page 286 of Mathematics in Our World.
Gather three of your favorite packaged foods; perhaps one from each: breakfast, lunch and dinner. Use the model explained in the “Are You Sure It’s Fat Free?” to analyze,..

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This Discussion will help us learn to develop our own mathematical models, write down the equations and then solve the equations for unknown values using algebraic methods.
Refer back to Week One Discussion and use the names and ages of yourself and the other two people you selected. Make..

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This Discussion should be an eye opener for most students. We will look at our food shopping trends and how we spend our money. The outcomes should reveal some interesting facts.
Save a cash register receipt from a shopping trip to the food market, or borrow one from a family member or fr..

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Assignment
Following completion of your readings, complete exercises 35 and 37 in the “Real World Applications” section on page 280 of Mathematics in Our World.
For each exercise, specify whether it involves an arithmetic sequence or a geometric sequence and use the proper formulas where..

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MAT 126 Week 1 Quiz
1. Question : Upon examining the contents of 38 backpacks, it was found that 23 contained a black pen, 27 contained a blue pen, and 21 contained a pencil, 15 contained both..

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All numbers in our real number system are the product of prime numbers. Complete the following steps for this discussion:
List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger.
Fin..

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MAT 126 Week 1 DQ 1
MAT 126 Week 1 Quiz
MAT 126 Week 1 Written Assignment (Arithmetic and geometric sequence)
MAT 126 Week 2 DQ 1
MAT 126 Week 2 DQ 2
MAT 126 Week 2 Assignment Is It Fat Free
MAT 126 Week 2 Quiz
MAT 126 Week 3 DQ 1
MAT 126 Week 3 DQ 2
MAT 126 Week 3 Assignm..
