Ask questions and get helpful responses.
Ask a New Question

In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule: The top

42,271 results

  1. Math

    In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule: The top 10% receive A's. The next 20% receive B's.

  2. Math

    In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule: The top 10% receive A's. The next 20% receive B's.

  3. Stats

    In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 72 and a standard deviation of 9. Grades are to be assigned according to the following rule: The top 10% receive A's. The next 20% receive B's.

  5. maths

    In a large section of a statistics class, the points for the final exam are normally distributed, with a mean of 70 and a standard deviation of 8 Grades are to be assigned according to the following rule . the top 10% receive A's, the next 20% receive B's;

  6. Statisitics

    In a large section of a Chemistry class, the points for the final exam are normally distributed, with a mean of 72, and a variance of 81. Grades are to be assigned according to the following rule: the top 10% receive As, the next 20% receive Bs, the middle

  7. statistics

    In a large class, there were 220 students who wrote both the midterm and the final exam. The standard deviation of the midterm grades was 14, and that of the final exam was 20. The correlation between the grades on the midterm and the final was 0.60. Based

  8. statistics

    Suppose the final exam scores in a large class is symmetric mound shaped with a mean of 70 points and standard deviation of 10 points. The percentage of students in the class who receive more than 60 points is approximately

  10. Statistics

    On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \σ=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, σ=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/3.57=1.120

  11. statistics

    On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, ?=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960 Z2=53-49/3.57=1.120

  12. Statistics

    In Professor Smith's statistics course, the correlation between students' total scores before the final exam and their final exam scores is r = 0.67. The pre-exam totals for all students in the course have a mean of 275 and a standard deviation of 26. The

  13. statistics

    Correction On this semesters final exam, john scored 72 on his calculus exam, (class distribution (u=65, \?=3.57)\) ) and 53 on his statistics exam (class distribution :u=49, ?=2.04. Which exam should he get the better grade. z1=72-65/3.57=1.960

  15. Stats, Statistics, Math

    A Statistics professor assigned 10 quizzes over the course of the semester. He wanted to see if there was a relationship between the total mark of all 10 quizzes and the final exam mark. There were 229 students who completed all the quizzes and wrote the

  16. stats

    Relatively speaking, which statistics exam did you do better on? On your first statistics exam you scored a 72 and on the second exam you scored an 89. Hey, you’re improving! Or are you? On the first exam, the class mean was 71 with a standard deviation

  17. Algebra

    16. Going into his final exam, John has a total of 72 points out of 90 possible in his history class. His final exam is worth 10 points. How many points must he get on his final exam to end the class with an 80%? 8? 17. Joan actually likes 30% of her male

  18. statistics

    On this semesters final exam, john scored 72 on his calculus exam and 53 on his statistics exam. The z score for both exams was the same. Which on would he do better on? a. calculus b.statistics c. the exam scores are equivalent

  20. statistics

    On this semesters final exam, john scored 72 on his calculus exam and 53 on his statistics exam. The z score for both exams was the same. Which on would he do better on? a. calculus b.statistics c. the exam scores are equivalent

  21. Statistics

    A class has 3 sections. Here is a summary of the scores on the final exam. Average SD Number of Students Section 1 68 9 20 Section 2 75 9 25 Section 3 60 9 32 Find the average score of all the students in the class.

  22. math, probability

    Exercise: CLT applicability Consider the class average in an exam in a few different settings. In all cases, assume that we have a large class consisting of equally well prepared students. Think about the assumptions behind the central limit theorem, and

  23. Statistics on Psychology

    Hi there, I was looking for any assistance or help on how I would go about starting this assignment? Having difficulty understanding it. Thank you in advance. "A stats instructor is interested in investigating time of day his lectures were held on student'

  25. Statistics help?

    Hi there, I was looking for any assistance or help on how I would go about starting this assignment? Having difficulty understanding it. Thank you in advance. "A stats instructor is interested in investigating time of day his lectures were held on student'

  26. algebra

    the final exam in a course will count as 30% of the total. prior to the final exam, 245 points are possible. how many points will the final exam be worth?

  27. economics

    A professor of economics gives multiple choice exams each semester. He curves the exams by giving the maximum possible points to the high score on the exam. For example, if a 50 question exam is worth 100 points and the top score in the class is 40, then

  28. ALGEBRA 1

    In a certain math course, a student needs between 720 and 810 points in order to get a B. The final exam is worth 200 points. If Cathy has 582 points just before the finals, what range of scores on the final exam will give her a B for the course?

  30. Algebra 2

    I have taken algebra 2 for three years in a row. I take notes daily, I pay attention in class, I have a tutor, and yet I am in the same position again. I currently have a 56.7% in my algebra 2 class. I have one test and the final exam before final grades

  31. math

    on 3 tests you earned grades of 88%,94%,and 90%. Each test was worth 150points. The final exam is worth 250 points. How many points do u need on the final exam to earn 93% of the total points on tests? What percent do you need on the final?

  32. math

    The final exam is worth 250 points. How many points do yu need on the exam to earn 93% of the total points ? What percent do yu need on the final?

  33. math

    on 3 tests you earned grades of 88%,94%,and 90%. Each test worth 150 points. The finalo exam is worth 250 points. How many points do you need on the final exam to earn 93% of the total points on tests? What percent do you need on the final?

  35. Statistics

    In Professor White’s statistics course the correlation between the students’ total scores before the final examination and their final examination scores is r = 0.9. The pre-exam totals for all students in the course have mean 275 and standard

  36. Statistics

    In your biology class, your final grade is based on several things: a lab score, score on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 25% of your total grade, each major

  37. working with data

    josephs final averages in science class are shown in the table below. homework % toward final grade-20% average-93 quizzes % toward final grade-20% average-92 tests % toward final grade-40% average-85 final exam % toward final grade-20% average-? what is

  38. statistics

    On this semester’s final exam, Susie scored 72 on her classics exam (class distribution: μ = 65, σ = 3.57) and 53 on her psychology exam (class distribution: μ = 49, σ = 2.04). For which exam should Susie expect the better grade? a. Classics b.

  40. Algebra

    Josie must have at least 320 points in her math class to get a B. She needs a B or better to maintain her GPA so she can play an the basketball team. The grade is based on four 50-point tests, three 20-point quizzes, two 20 point projects, and a final exam

  41. math

    In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 16% of your total grade, each major

  42. statistics

    The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam. Calculate the correlation coefficient r.

  43. Statistics

    In your biology class, your final grade is based on several things: a lab score, scores on two major tests, and your score on the final exam. There are 100 points available for each score. However, the lab score is worth 15% of your total grade, each major

  45. Math ?

    I have a dilemma; my English professor doesn’t give us our grades so I currently don’t know what percent I am at in the class. I really need to know since I need to know if I’ll be passing or not. He doesn’t grade anything with percent’s, and

  46. math

    On three tests you earned grades of 88%,94% and 90%. Each test was worth 150 points. The final exam is worth 250 pts. How many pts do you need on the final exam to earn 93% of the total points on tests? What percent do you need on the final?

  47. statistics

    5. The table below shows Psychology exam scores, Statistics Exam scores, and IQ scores for a random sample of students. What can you observe in the relationship between IQ and psychology, psychology and statistics, and IQ and statistics? Using a

  48. math

    Statistics: Analyze student exam scores Students were given an exam with 300 multiple choice questions. The distribution of the scores were normal and the mean was 195 with a standard deviation of 30. you may find it helpful to draw out this distribution

  50. Math/Statistics

    A statistics teacher believes that the final exam grade for her elementary stats class have a normal distribution with a mean of 82 and a standard deviation on 8. Find the score which separates the top 10% of the scores from the lowest 90% of the scores.

  51. math

    I need help figuring the grade for two students I keep getting a big number. *Note Final can replace a low exam grade 𝐺𝑅𝐴𝐷𝐸 = .15 ∗ (𝐷𝑎𝑖𝑙𝑦 𝑎𝑣𝑔) + .65 ∗ (𝐸𝑥𝑎𝑚 1 + 𝐸𝑥𝑎𝑚 2 + 𝐸𝑥𝑎𝑚 3

  52. math

    a teacher teaches two class and each class contains 35 students. if she grade final exam at a rate of 15 minutes per exam. how many minutes will it take to grade all final . how many hours is this?

  53. statistics

    The professor teaching a large introductory class gives a final exam that has alternate forms, A, B, and C. A student taking the exam using Form B is upset because she claims that Form B is much harder than Forms A and C. Discuss how percentile point data

  55. Introduction to Graphic Design A

    Hello! Thanks for checking my question out! ____ Last semester's geology class worked together to create a review sheet for the final exam. The review sheet contains information that covers 13 chapters worth of content along with tables, graphs, and

  56. statistics

    Leslie took two midterm exams and earned the following scores: 82 on the chemistry exam (class distribution: μ = 75, σ = 6.25) and 63 on the physics exam (class distribution: μ = 59, σ = 3.57). Rounding to two decimal points, on which exam should

  57. Physics

    I have a 67 as a final grade for the year in my physics class my final exam counts as 10% if I get a 0 and just don't show up to my final will I fail the class for the year?

  58. Business and math question

    Isabella is hoping to get an A on her college algebra course. With just the final exam left to take, she currently has an average of 92 on her exercises. The quizzes count for 40%, exercises count for30% of the class grade. What is the minimal grade that

  60. Digital art and design

    GUYS PLEASE HELP I MEED TO GET THIS DONE THERES 50 QUESTIONS FINAL EXAM Lesson 1: Final Exam 0103000 M/J Digital Art and Design 1- T2 Unit 5: Final Exam PLEASE PLEASE PLEASE HELP ILL REPAY YOU IN SOME WAY IF I HAVE TO 😖😖😖 ALSO THIS IS 6th GRASS

  61. math

    Julie wants to have a 90 average in her math class at the end of the year. She is trying to determine what she needs to make on her final exam for this to work. Everything is weighted equally and she currently has a 85 for her quiz average, a 80 for her

  62. statistics

    An 8th grade history teached studied the statistics for her mid-term exam. The average grade for the mid-term was 84 points, and the standard deviation was 8 points. The Z-score for a student who scores 90 on the exam is: 84-90/8= -0.75

  63. ENG 101

    Im taking my first college class in ENG 101 and i need to write an persuasive essay and Im having a hard time. I was wondering if anyone can help me come up with an outline or what I reasons that I can provide and I can come up with minor details. Here is

  65. Algebra

    A student in a Pre-Calculus class has test scores of 70, 73, 61, and 79. The final exam is worth 2 test grades. Write a linear equation that models this problem, where x is the grade on the final exam and y is the student's grade in the course. What grade

  66. Probability

    There are 179 students currently registered in a course. This final exam is graded out of 75. For the purposes of this question you can assume that all the grades are integers. If you know that at most 10 students will get a grade strictly below 20, what

  67. statistics

    Professor Smith gave a final exam in her history class. The scores on the final exam are normally distributed with a mean of 75 and a standard deviation of 6. If Professor Smith wishes to give A’s to the top 4%, what would be the cutoff score be for

  68. Math ave grade

    a student scores 76,82,83 on the first three test, she has a 92 homework averge. if the final exam is 50% of grade and homework is 10% and the test average (nit including the final) is 40% then what grade should she get on the final exam to get a 87.5 in

  70. algebra

    students in a biology class just took a final exam. a formula for predicting the average exam grade on a similar test t months later is. s(t)=78-15log(t+1) (a)find the students average score when they first took the final exam. (b)what would be the

  71. Math - Ratios

    In Mrs. Sotomayor's class, the final grade is based on 6 quizzes and 2 exams. If each exam counts for 3 times as much as each of the quizzes, what fraction of the final grade is determined by each exam?

  72. statistics

    5. The table below shows Psychology exam scores, Statistics Exam scores, and IQ scores for a random sample of students. What can you observe in the relationship between IQ and psychology, psychology and statistics, and IQ and statistics? Using a

  73. Math

    If Rachel is at 52% in her class and she gets 50% on her final exam (her final exam is worth 40% of her grade) then what is her final grade?

  75. Math: Algebra

    Madoka has scores 84, 89, and 91, each out of 100 points, on her algebra tests. Use an inequality to find the score she must make on the final exam to pass the course with an average of 90 percent or higher, given that the final is worth 150 points.

  76. Statistics

    The next three questions refer to the following situation. Data from previous years reveal that the distribution if first exam scores in an introductory statistics class is approximately normal with a mean of 72 and a standard deviation of 12. 16) Given

  77. statistics

    Answer the question(s) based on the following situation: 150 students in a math class take the final exam. The scores on the exam have an approximately normal distribution with center ì = 65 and standard deviation ó = 10.The third quartile of the scores

  78. math

    kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores

  80. math

    kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores

  81. finite math

    kris scored 630 points on a particular section of a CPA exam for which the score were normally distributed with a mean of 600 points and a standard deviation of 75 points. At a differenttime, kerry scored 540 points on the same section, for which scores

  82. college algebra

    Students in an English class took a final exam. They took equivalent forms of the exam at monthly intervals thereafter. The average score S(t), in percent, after t months was found to be given by S(t) = 68 - 20 log (t+1), t > 0

  83. math

    Each test grade in Sara's science class counts for 1/6 of the final grade. The final exam counts for 1/2. Sara's test scores are 72, 84, and 90. Her final exam score is 90. What is Sara's final grade for the class? A) 83 B) 86 C) 87 D) 89

  85. Final-Chemistry

    I have finals coming up in a week and a half. I know I should have started studying earlier, but I just had an exam in my chem class and was focused on getting the information for that exam mastered before I started studying for the final. Now, I'm

  86. Math 126

    These are the automatically computed results of your exam. Grades for essay questions, and comments from your instructor, are in the "Details" section below. Date Taken: 7/15/2012 Time Spent: h , min , 19 secs Points Received: 18 / 20 (90%) Question Type:

  87. Math

    Can someone please help me with these three question? I having a very difficlut time answering them May first question To select a _________ sample, the population is divided into disjoint subgroups according to some characteristics like income level, and

  88. Math

    Erica has scores:131, 120, and 140, each out of 150 points, on her algebra tests. Use an inequality to find the score she must make on the final exam to pass the course with an average of 80 percent or higher, given that the final is worth 200 points.

  90. Algebra

    In his mathematics class, John has taken 3 tests, each worth 20% of his total grade. His grades on those tests were 92%,83%,and 85%. He has an 100% average on his homework, worth 10% of his grade. All that remains is a final exam worth 30% of his total

  91. MATH015

    eric has unit test scores of 70, 79, 52 and 54 in MATH015. He needs an average of 69.5 or greater to be able to progress to the next class in the math sequence. I final exam counts as 2 tests, write an inequality to find what scores on the final exam eric

  92. Analytical Skills

    If your score on a statistics exam was 76 and the professor gave you the distribution for the exam score for your class, you could find your percentile to understand where you stand in comparison to your fellow students. Assume that the distribution for

  93. fractions

    In Mr. Johanessen's class, 1/4 of the students failed the final exam. Of the remaining class, 1/3 scored an A. What fraction of the whole class passed the test but scored below an A?

  95. Health

    Lesson 1: Health, Fitness, and Nutrition A Final Exam Health, Fitness, and Nutrition A Unit 3: Final Exam I need help with the midterm for the class above. It has 52 questions SEND HELP lol

  96. statistics

    12. A statistics student received a grade of 85 on a statistics midterm. If the corresponding z score equaled +1.50, and the standard deviation equaled 7, what was the average grade on this exam? a. 95.5 b. 74.5 c. 78.0 d. Cannot determine without knowing

  97. statistics

    An instructor in a large lecture class found at the end of the semester that total points scored by students in his class was approximately Normal with mean 530 and standard deviation 80. If 10% of the class are to receive A's (he grades on a curve), what

  98. Stats

    the final grade averages from a fictional graduate statistics class are uniformly distributed between 66 and 96. what is the probability that a student selected at random will have a final average of between 90 and 100?

  100. math

    A student’s final grade in chemistry is determined by the following weights: Quizzes 5% Exam 1 20% Exam 2 20% Lab Reports 15% Research Paper 15% Final Exam 25% The student received the following grades: Lab reports: 75 80 70 75 85 69 90 75 Quizzes: 85 60

  101. algebra

    What is the final grade for this student? (round to two decimal places) Quizzes = 5%, Exam 1 = 20%, Exam 2 = 20%, Lab Reports = 15%, Research Paper = 15%, Final Exam = 25% Lab Reports: 75,80,70,75,85,69,90,75 Quizzes: 85,60,70,0,75,80,80,80 Exam 1: 80 Exam

  102. statistics

    A​ student's course grade is based on one midterm that counts as 5​% of his final​ grade, one class project that counts as 25​% of his final​ grade, a set of homework assignments that counts as 35​% of his final​ grade, and a final exam that

  103. Math

    I have a question.. I have a 90.7% in math right now and I need to bring it up to a 93%. The only thing left is the final exam, which is worth 10% of your grade. Does anyone know a formula or a method that will allow me to calculate what I need on the

  105. Math

    ASKING FOR HELP, A STUDENT HAS SCORED 84, 78 AND 86 ON THREE 100 -POINT EXAMINATIONS FOR MATH CLASS. HOW MANY POINTS DOES THE STUDENT NEED TO SCORE ON THE 200-POINT FINAL EXAM, IN ORDER TO GET AN AVERAGE OF 90%, WHICH IS AN A, IN THE COURSE?

  106. Math

    A STUDENT HAS SCORED 84, 78 AND 86 ON THREE 100 -POINT EXAMINATIONS FOR MATH CLASS. HOW MANY POINTS DOES THE STUDENT NEED TO SCORE ON THE 200-POINT FINAL EXAM, IN ORDER TO GET AN AVERAGE OF 90%, WHICH IS AN A, IN THE COURSE?

  107. JAVA PROGRAMMING

    im new to java and this is my first assignment can anyone help me solving it: compile the class final grades, based on the students’ scores obtained in the classwork, mid-term, and final exams. According to the course syllabus, the classwork accounts for

  108. statistics

    A recent statistics exam yielded the following 25 scores. Construct a grouped frequency distribution with the class limits shown below. 64 84 71 59 67 58 88 68 70 94 90 81 43 77 86 72 81 79 98 52 72 72 47 81 96

  110. Math

    Professor Smith gives only a midterm exam and a final exam. The average is computed by taking 1/3 of the midterm exam score and 2/3 of the final exam score. To get a “C” or better students must have at least 70 semester average. If Laura scored only a

  111. Algebra

    Before the final exam, a student has test scores of 72, 80, 65, 78, and 60. If the final exam counts as one-third of the final grade, what score must the student receive in order to have a final average of 76 percent? Thanks!!

  112. statistics

    this is a problem in my statistics class, and I am lost to me, it is confusing or missing something here is the problem please help grade points are assignede as follows: a=4,b=3,c=2,d=1,f=0. grades are weighted according to credit hours. if a student

  113. math (algebra)

    In Professor Tuffguy's mathematics class, 36 students took the final exam. If the average passing grade was 78, the average failing grade was 60, and the class average was 71, how many of these 36 student passed the final?

  115. math

    . A student’s final grade in chemistry is determined by the following weights: Quizzes 5% Exam 1 20% Exam 2 20% Lab Reports 15% Research Paper 15% Final Exam 25% The student received the following grades: Lab reports: 75 80 70 75 85 69 90 75 Quizzes: 85

  116. math

    A​ student's course grade is based on one midterm that counts as 15​% of his final​ grade, one class project that counts as 15​% of his final​ grade, a set of homework assignments that counts as 40​% of his final​ grade, and a final exam that

  117. Math

    A​ student's course grade is based on one midterm that counts as 5​% of his final​ grade, one class project that counts as 20​% of his final​ grade, a set of homework assignments that counts as 30​% of his final​ grade, and a final exam that

  118. statistics

    A class consists of 45 students. Ten of these students received an "A" for the final exam. Five students are selected at random from this group. a) What is the probability that three of the five students selected received an "A" for the final exam? b) What

  120. economics

    A class consists of 45 students. Ten of these students received an "A" for the final exam. Five students are selected at random from this group. a) What is the probability that three of the five students selected received an "A" for the final exam? b) What

  121. math

    In a course a student's final exam is weighted as heavily as his mid term exam.if a student receives a score of 84 on his final exam 90 on his midterm,what is the average for the course?

  122. Statistics

    In the population of typical college students, _ 5 75 on a statistics final exam _X 5 6.42 . For 25 students who studied statistics using a new technique, X 5 72.1. Using two tails of the sampling distribution and the .05 criterion: (a) What is the

  123. math

    An instructor counts homework as 1/3 of the student's grade and the final exam to be 2/3 of the student's final grade. Going into the final exam a student has a homework grade of 48%. What range of scores on the final exam would put the student's final

  125. Algebra

    Mr. Variability is using a normal curve to assign exam grades for his class. This means students more than 2 standard deviations from the class mean will receive an F. If the class mean is 82% and the standard deviation is 4.5%, what would be the highest F

Pages

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12
  13. 13
  14. 14
  15. 15
  16. 16
  17. 17
  18. 18
  19. 19
  20. 20