Homework Answers
Lower quartile separates the lower 25% of the population and upper 75% of the population. Hence,
If 75% of the students group get more than 45 scores then the lower quartile is 45.
Option C is correct.
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Question 2 If 75% of the students in a student group get more than 45 scores,...
2. Create a class that represents a group of students called GroupOfStudents. Create another class Student...
2. Create a class that represents a group of students called GroupOfStudents. Create another class Student that represents a typical student. The GroupOfStudents class has a list of students as well as the following methods: a. Group average b. Names of all the students whose test scores are below the group average, with an appropriate message c. Highest test score and the names of all the students having the highest score Create a separate test module where instances of the...
The scores in a Math Contest follow the Gaussian Distribution. Arvind scores 75 out of 100....
The scores in a Math Contest follow the Gaussian Distribution. Arvind scores 75 out of 100. The average score for the test is 60. The Standard deviation is 15. The top 10 percent of the Contest are eligible for Scholarship. What is the Least score needed to qualify? Will Arvind qualify? What percentage of students scored lower than Arvind?
Question: - write a C++ program that asks user to enter students' quiz scores, calculate the...
Question: - write a C++ program that asks user to enter students' quiz scores, calculate the total score for each students and average for all. Note: - number of students: 1 through 5. That is, at least one student and up to 5. - number of quizes: 8 through 10. That is, at least 8 quizes and up to 10. - quiz score range: 0 through 100. - when entering quiz scores, if user enters -1, that means the user...
When examining the test distribution of scores, a professor finds that there is one student in...
When examining the test distribution of scores, a professor finds that there is one student in the first quartile (Q 1 ). That means that the one student a. scored higher than 24.99% of the people who took the test b. the distribution of the scores is skewed o the student's score is the same as the value of the median of the distribution d. the student scored higher than 74.99% of the people who took the test
5. A group of 5 students scores on Exam 1 and Exam 2 in Math 1153...
5. A group of 5 students scores on Exam 1 and Exam 2 in Math 1153 is recorded bellow: Вс Student 1 3 3 5 N 14 15 Exam 1 86 84 90 85 Exam 2 78 68 57 80 (a) Sketch the scatter plot for Exam 1 vs. Exam 2 scores and identify the form and direction of the association between them. FO CH Te (b) Calculate the correlation coefficient r and interpret its value in the context of...
The scores on a Statistics exam are normally distributed with a mean 75 with a standard...
The scores on a Statistics exam are normally distributed with a mean 75 with a standard deviation of 5. If nine students are randomly selected what is the probability that their mean score is greater than 68. (a) .0808 (b) -.4000 (c) .9192 (d) .0001 (e) .9999 29. Refer to question 28. Suppose that students with the lowest 10% of scores are placed on academic probation, what is the cutoff score to avoid being placed on academic probation? (a) >...
1. I recently asked 100 middle school students to complete a statistics test. The mean score...
1. I recently asked 100 middle school students to complete a statistics test. The mean score on the test was 30 points with a standard deviation of 5 points. The scores followed a normal distribution. Using this information, calculate the following: a. What is the probability a student earned a score of 45 points or less? P (score < 45 points) = b. What is the probability a student earned a score higher than 30 points? P(score > 30) =...
Assignment W3-2 This programming assignment addresses: •Compiling and Executing an App with more than 1 class...
Assignment W3-2 This programming assignment addresses: •Compiling and Executing an App with more than 1 class •Initializing Objects using Constructors •Software Engineering with Private Instances Variables and Public Set/Get Methods •Uses Methods inside classes Description: You are asked to write a program to process two students’ scores. Each student will have scores for 3 tests, the user will input each student’s full name followed by their three scores. When the data for the two students are read from the keyboard,...
3. (4 points) The scores on a test are normally distributed with a mean of 75...
3. (4 points) The scores on a test are normally distributed with a mean of 75 and a standard deviation of 8. a) Find the proportion of students having scores greater than 85. b) If the bottom 3% of students will fail the course, what is the lowest score that a student can have and still be awarded a passing grade? Please round up to the nearest integer.
QUESTION 5 class' distribution is more variable than that of the norm group in which subjects?...
QUESTION 5 class' distribution is more variable than that of the norm group in which subjects? Use the table of test scores to answer the question. Check all that apply. Geography English Spelling Science Mean of all 5th graders in District (150 students) SD of these 5th graders Mean of theNorm Group SD of the Nom Group 75 12 85 10 100 125 90 12 00120 90 15 10 20 10 15 Spelling Geography Science English
2. Create a class that represents a group of students called GroupOfStudents. Create another class Student that represents a typical student. The GroupOfStudents class has a list of students as well as the following methods: a. Group average b. Names of all the students whose test scores are below the group average, with an appropriate message c. Highest test score and the names of all the students having the highest score Create a separate test module where instances of the...
When examining the test distribution of scores, a professor finds that there is one student in the first quartile (Q 1 ). That means that the one student a. scored higher than 24.99% of the people who took the test b. the distribution of the scores is skewed o the student's score is the same as the value of the median of the distribution d. the student scored higher than 74.99% of the people who took the test
5. A group of 5 students scores on Exam 1 and Exam 2 in Math 1153 is recorded bellow: Вс Student 1 3 3 5 N 14 15 Exam 1 86 84 90 85 Exam 2 78 68 57 80 (a) Sketch the scatter plot for Exam 1 vs. Exam 2 scores and identify the form and direction of the association between them. FO CH Te (b) Calculate the correlation coefficient r and interpret its value in the context of...
3. (4 points) The scores on a test are normally distributed with a mean of 75 and a standard deviation of 8. a) Find the proportion of students having scores greater than 85. b) If the bottom 3% of students will fail the course, what is the lowest score that a student can have and still be awarded a passing grade? Please round up to the nearest integer.
QUESTION 5 class' distribution is more variable than that of the norm group in which subjects? Use the table of test scores to answer the question. Check all that apply. Geography English Spelling Science Mean of all 5th graders in District (150 students) SD of these 5th graders Mean of theNorm Group SD of the Nom Group 75 12 85 10 100 125 90 12 00120 90 15 10 20 10 15 Spelling Geography Science English
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