A student recorded her scores on weekly math quizzes that were marked out of a possible 10 points .her scores were as follows
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math
A student has passed 60 percent of the 20 quizzes he has written so far successfully. If the student writes 50 quizzes during the year, and passes 80 percent of the remaining quizzes successfully, what would his average percentile be? same with this one

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

Stats
Suppose the correlation between SAT Verbal scores and Math scores is 0.57 and that these scores are normally distributed. If a student's Verbal score places her at the 90th percentile, at what percentile would you predict her Math score to be?

Algebra 1
1.Which of the following situations best describes a student engaged in active learning. A. A student uses only one of the resources provided by the teacher*** B. A student skips parts of lessons that he or she finds difficult C. A student records

Math
The combined math and verbal scores for students taking a national standardized examination for college admission, is normally distributed with a mean of 620 and a standard deviation of 220. If a college requires a student to be in the top 10 % of students

Mathematics
If you were given the following scores for math classes, calculate the student's GPA using a standard 4.0 scale. Round to the hundredths place. Course Credits Grade MATH 100 3.0 A MATH 123 3.0 B MATH 137 3.0 B MATH 264 4.0 D

Math
Mariah took 4 quizzes in her class this past month. Her scores were 92, 94, 100 and 83 what was her mean score A.92.95 B.93.5 C.93.75 D.94.25

statistics
SAT Exam Scores – A school administrator wonders if students whose first language is not English score differently on the math portion of the SAT exam than students whose first language is English. The mean SAT math score of students whose first language

Statistics
The National Assessment of Educational Progress tested a simple random sample of 1000 thirteen year old students in both 2004 and 2008 and recorded each student's score. The average and standard deviation in 2004 were 257 and 39, respectively. In 2008, the

math
A professor grades students on three tests, four quizzes, and a final examination. Each test counts as two quizzes and the final examination counts as two tests. Sara has test scores of 60, 80, and 89. Sara's quiz scores are 85, 94, 83, and 84. Her final

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

Math
Suppose there is a quiz in your mathematics class every week. The value of each quiz is 50 points. After the first 6 weeks, your average mark on these quizzes is 36. a) What average mark must you receive on the next 4 quizzes so that your average is 40 on

Math
Ethan's quiz average in spelling for the past 7 quizzes is 93. How many total points does he have for the 7 quizzes?

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

math
A professor grades students on three tests, four quizzes, and a final examination. Each test counts as two quizzes and the final examination counts as two tests. Sara has test scores of 60, 80, and 89. Sara's quiz scores are 85, 94, 83, and 84. Her final

statistics
The box plot below summarize the distributions of SAT verbal and math scores among students at an upstate New York high school. 300 400 500 600 700 800 data Whic of the following statements is false? 1. The range of the math scores equals the range of the

Statistics
For a 10 point quiz, the professor recorded the following scores for 8 students: 7, 8, 3, 9, 10, 6, 8, 5 What is the Mean for this set of scores?

math
a student's 10 scores on 10point class quizzes include a 6, a7, a4, five 9s, an 8, and a 10. The student claims that her average grade on quizze is 9 because most of her scores are 9s.

math
can somebody help me with this math problem? I don't understand what i'm supposed to do, so a few links to tutorials or an explanation would be really helpful! "sam recorded how many pounds he gained each month for four months and recorded the results as

Math
7. A student has received scores of 88, 82, and 84 on three quizzes. If tests count twice as much as quizzes, what is the lowest score the student can get on the next test to achieve an average score of at least 70? A. 13 B. 48 C. 70 D. 96 The correct

Word Problem
A math teacher gives two different tests to measure students' aptitude for math. Scores on the first test are normally distributed with a mean of 25 and a standard deviation of 4.6. Scores on the second test are normally distributed with a mean of 68 and a

math
Two fraternities, Sig Ep and Ep Sig, plan to raise money jointly to benefit homeless people on Long Island. They will sell Yoda vs. Alien Tshirts in the student center, but are not sure how much to charge. Sig Ep treasurer Augustus recalls that they once

punjab technical university
A student recorded her scores on weekly math quizzes that were marked out of a possible 10 points .her scores were as follows

Statistics
The scores on a math test are normally distributed. if the mean is 72 and the standard deviation is six, what is the range of 98% of the scores?

hough jass
Mariah took 4 quizzes in her class during the past month. Her scores were 92, 94, 100, and 83. What was her mean quiz score? A. 92.25 B. 93.5 C. 93.75 D. 94.25

6th grade Math
Zoya asked the students of her class their baseball scores and recorded the scores in the table shown below: Baseball Scores Score Number of Students 0 1 1 2 2 5 3 3 4 6 5 7 6 9 Based on the table, what is the mean baseball score? 2.5 2.9 3.5****** 4.1

algebra
Sally's scores on her science quizzes are listed below. Which average best represents Sally's scores? Explain reasoning. SCORES: 86 78 70 68 95 81 85 89 95 Sally receives a score of 100 on the next quiz. How does this score affect the mean, median and

Math
John has scores of 88,73,90,85,93 on five math quizzes. What scores must john earn on the next math quiz to have a mean quiz score of exactly 88?

Mathematics
Find the overall score for the student with the following weighted system and average scores. Round to the tenth. Weight Grade Tests 55% 78.5 Homework 25% 80 Take home quizzes 15% 72 Participation 5% 50

Derrick
John kept track of all his math and reading test scores throughout the year as shown in the table below. Test 1:90math 80reading Test 2:75math 90reading Test 3:80math 70reading Test 4:90math 75reading Test 5:95math 90reading What is the difference between

STATISTICS
For a 10 point quiz, the professor recorded the following scores for 8 students: 7, 8, 3, 9, 10, 6, 8, 5 What is the Mean for this set of scores?

Statistics
Please Help! Check My Answer!! The following frequency distribution analyzes the scores on a math test. Find the class boundaries of scores interval 4059 Scores Number of Students 4059 2 6075 4 7682 6 8394 15 9599 5 39.5, 59.5 39.5, 58.5 40.5,

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

Math
In college algebra a student earns an average grade of 86 on his homework and 75 on his quizzes. What final examination grade will give him a total average of 80 if homework 1/10 , quizzes 3/5 and the final examination 3/10?

Statistics
Suppose the correlation between SAT Verbal scores and Math scores is 0.57 and that these scores are normally distributed. If a student's Verbals core places her at the 90th percentile, at what percentile would you predict her Math score to be/

Statistics
suppose the correla tion between SAT Verbal scores and Math scores is .57 and that these scares are normally distributed. IF a student's Verbal score places her at the 90th percentile, at what percentile would you expect her Math scores to be?

Science (Chemistry) (Measurement Uncertainty)
Three students are asked to determine the mass of a coin. They each measure different values for the mass of the coin using a balance. Student A recorded a mass of 63.08g, student B recorded a mass of 63.022g and student C recorded a mass of 63.0328g. If

math 140
The math scores of a math test for five students were posted on the bulletin board. The students' names are Rod, Penny ,Jake, and Fred. Rod and Fred scored the same number of points. Penny did not get the highest score. John's score was 5 points lower than

ENGLISH
Below is how students feel about the NYS Math test that is days away(Is there any corrections I can make or add?) Are the students at I.S.230 really ready for the NYS Math Test? 5/9/2011 By: Anonymous Mostly all the students at I.S.230 in Jackson Heights,

math
A student's scores on four math tests were 89,92,95, and 85. What will he need to make on the 5th test to have an average of 93? is this possible? HELP!

Basic Statistics
The math grades on the final exam varied greatly. Using the scores below, how many scores were within one standard deviation of the mean? How many scores were within two standard deviations of the mean? 99 34 86 57 73 85 91 93 46 96 88 79 68 85 89

math
Mrs. Cason gives her class a spelling quiz every Monday, a math quiz every other Monday and a history quiz every third Monday . Sally smarty is in Mrs. Carson's class. She received a grade of 100% on all three quizzes today. How long will it be before she

The SAT,
I'm a 7th grader that took the SAT. These were my scores: Critical Reading: 500 Math: 490 Writing: 590 Essay: 10 Total=1580 Good scores? What do you think my scores will be when I take the SAT again as junior in high school? Please and thanks! c:

statisitcs
The combined math and verbal scores for students taking a national standardized examination for college admission is normally distributed with a mean of 560 and a standard deviation of 180. If a college requires a student to be in the top 40 % of students

SelfTaught Mathematicians
Those of us who love math certainly know two basic facts about Mr. Gottfried Wilhelm Leibniz: (1) He and Newton (our calculus guy) did not get along AND (2) Mr. Leibniz was a selftaught mathematician My question is for all tutors here who love math. What

Math
An instructor gives regular 20point quizzes and 100point exams in a mathematics course. Average scores for six students, given as ordered pairs (x,y) where x is the average quiz score and y is the average test score, are (18, 87), (10, 55), (19, 96),

8th grade science
the length of a piece of string is known to be exactly 9.84 cm. two students measured the string. student A used a ruler marked in centimeters and got a measurement of 10 cm. student B used a ruler marked in millimeters and centimeters and got a

Probability
At a certain university, 30% of the students major in math. Of the students majoring in math, 60% are males. Of all the students at the university, 70% are males. a) What is the probability that a student selected at random in the university is male and

To Michael
Here's the question you posted in response to another student. "Ms.Sue do you mind if i ask were you a math teacher or are you just a genius at math and why do you do this help online do you get any benefit for doing this?" I taught a couple of sections of

Math
105 91 82 59 97 72 72 88 81 What is the mode of these scores? A.46 B.72 C.82 D.83 B? 2.The test scores of 1 students are shown below 95 63 78 86 84 86 91 95 72 93 87 74 What is the median score of the 6 highest grades? A.86 B.91 C.92 D.93 C? 3.The test

algebra
erika has received scores of 82, 87, 93, 95, and 90 on math quizzes. What score must Erika get on her next quiz to have an average of 90?

math
On the last math quiz, there were four A's, two B's, five C's, and one D's. If the math quizzes were returned to the students in random order, what is the probability that the first quiz returned to a student was an A or a B?

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 50point tests, three 20point quizzes, two 20 point projects, and a final exam

Quizzes biology
Hello, my teacher has once said that she gets all of her quizzes from the internet, but I can't find the site. Does anyone have any idea as to where grade 12, hard, biology quizzes may come from? The quizzes are brutal, and it would so great if I could see

math
the following scores were recorded on a 200point final wxam 193,185,186,192,135,158,174,188,172,168,183,195,165,183. what is the mean please and is the mean or the median mor improtant for this Please see the other posts to figure out how to find the

algebra (Check answers :)
1.Which of the following situations best describes a student engaged in active learning. A. A student uses only one of the resources provided by the teacher B. A student skips parts of lessons that he or she finds difficult C. A student records questions

math
a student has two test scores in a psychology class. The mean of these scores is 76 and their range is 28. Use this information to determine the two scores. ( write a system of linear equations to solve the problem)

Math
The following set of numbers respresents the average weekly scores of 9 preschoolers on a verbal aggression scale. 19.1, 18.9, 33.5, 18.7, 28.1, 31.5, 20.3, 30.1, 17.9 Consider this to be the entire population of scores. What is the standard deviation? I

math
A math teacher is comparing math project scores from two classes. She wants to compare the medians and ranges of the scores from both sets of data. Which display should the math teacher use? scatter plots dot plots histograms box plots Is it dot plots

Probability
4.3. In a certain college town, 27.5 percent of the students failed Mathematics (Math), 19.8 percent failed Biology (Bio), and 11 percent failed both Math and Bio. A student is selected at random. Let A represent the event of failing Math, so that A' is

math
In an examination 70 student failled in math¡A90failed in science and 20 failed in both. if 80 student passed in math using venndaigram¡A find how mamy student were passed in both subject¡H

math
Mrs. Marcincavage allowed each student in her math class to drop the lowest of their five test scores. When Matthew dropped the lowest of his test scores, a 60, his test average increased by 5 points. What is Matthew’s new test average?

Math
Mrs. Marcincavage allowed each student in her math class to drop the lowest of their five test scores. When Matthew dropped the lowest of his test scores, a 60, his test average increased by 5 points. What is Matthew’s new test average?

8th grade  science
the length of a string is known to be exactly 9.84cm. two students measured the string. student A used a ruler marked in centimeters and got a measurement of 10 cm. student B used a ruler marked in millimeters and centimeters and got a measurement of 9.8

SAT
I'm a 7th grader that took the SAT. These were my scores: Critical Reading: 500 Math: 490 Writing: 590 Essay: 10 Total=1580 Good scores? What do you think my scores will be when I take the SAT again as junior in high school? Please and thanks! c:

Algebra
A student is taking a literature course in which four tests are given. To get a B, he must average at least 80 on the four tests. The student got scores of 82, 76, and 78 on the first three tests. Determine (in terms of inequality) what scores on the last

Algebra 2
You have made scores of 81, 76, 82 on Three quizzes. What is the least you can make on this quiz to have an average of at least 80? I tried solving this problem, but them got lost. How do i solve it?

statistics
A state administered standardized reading exam is given to eighth grade students. The scores on this exam for all students statewide have a normal distribution with a mean of 507 and a standard deviation of 60. A local Junior High principal has decided to

Algebraplease help!
I really need help with my math homework today, because I am totally confused! Please give me the answer, but also walk me through it, too, so I can fully understand it, because just the answer won't really help. #1: A math teacher wants to curve a set of

math
if john received an A on three of the last four math quizzes. what is the ratio.

algebra
The following scores were recorded on a 100point examination: 95, 75, 76, 86, 96, 71, 68, 81, 95, 76, 69, 82, 93, 88, 94 Find the mean and median final examination scores.

math
The following scores were recorded on a 100point examination: 95, 75, 76, 86, 96, 71, 68, 81, 95, 76, 69, 82, 93, 88, 94 Find the mean and median final examination scores.

Math
The following scores were recorded on a 100point examination: 95,75,76,86,96,71,68,81,95,76,69,82,93,88,94 Find the mean and median final examination scores.

Research and Statistics
I want to ensure I've done this problem correctly. Thanks! 3. In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78

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

maths
the mean of a set of test scores is 64. a new student takes the same test and scores 80 marks. when his score is added to the other scores, the mean increases to 65. how many students sat for the test altogether?

Mathematics
To earn an A in a course, a student must have a final grade of at least 0.9. On the first our examinations, a student scores 0.87, 0.89, 0.91, and 0.85. If the scores in the final examination counts as two examinations, what must this student get on the

Elementary Statistics
SAT math test scores for all students taking the test are approximately normally distributed with mean score of 514 and std. deviation of 118. What is the probability that a randomly chosen student will earn a score above 600 on their SAT math test?

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

math
Two fraternities, Sig Ep and Ep Sig, plan to raise money jointly to benefit homeless people on Long Island. They will sell Yoda vs. Alien Tshirts in the student center, but are not sure how much to charge. Sig Ep treasurer Augustus recalls that they once

Math
One of my coworker created math quizzes for class 7 . How can i check if that quiz is plagiarized or not? Any recommendation?

Research and Statistics
3. In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same

statistics
In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same

statistics
3. In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same

Stattistics
In one elementary school, 200 students are tested on the subject of Math and English. The table below shows the mean and standard deviation for each subject. Mean SD Math 67 9.58 English 78 12.45 One student’s Math score was 70 and the same

maths
the mean of the scores of student during the first 5 months is 23.8 ( what is the score of the 6 month if the mean of his scores is 24 marks?

Algebra
Two fraternities, Sig Ep and Ep Sig, plan to raise money jointly to benefit homeless people on Long Island. They will sell Yoda vs. Alien Tshirts in the student center, but are not sure how much to charge. Sig Ep treasurer Augustus recalls that they once

math
plz help students in a math class need an average of at least 90 points to earn an A. one student test scores are 88,91,and 85 what must be the strudent score on the nest test to earn an A? it is Inequalities

RES/342
Suppose you devised a training program to raise student scores on a standardized test, such as ACT, or AIMS (like in Arizona). You first administer the test to a random sample of students, record their scores, administer the training to these students, and

statistics
A student scores 600 on a SAT test. If the population mean of the test scores is 510 and the population standard deviation is 106 point, what is the student’s deviation from the mean?

math stats
instructor looked at his classes’ data from his first Mid Term. He recorded the students’ amount of study time (in minutes) and exam score (out of 100). He made a scatterplot and saw that it had a linear pattern. He computed correlation coefficient

Math
Five students took a math test. The average score was 82. Four of the students' scores were 76, 85, 90, and 64. What was the fifth student's score?

math
Two fraternities, Sig Ep and Ep Sig, plan to raise money jointly to benefit homeless people on Long Island. They will sell Yoda vs. Alien Tshirts in the student center, but are not sure how much to charge. Sig Ep treasurer Augustus recalls that they once

math
Two fraternities, Sig Ep and Ep Sig, plan to raise money jointly to benefit homeless people on Long Island. They will sell Yoda vs. Alien Tshirts in the student center, but are not sure how much to charge. Sig Ep treasurer Augustus recalls that they once

math
on two tests so far this year a student received a 78 and a 93 the student want an average between 80 and 90 inclusive what are all of the possible scores for the third test so that the student falls within this average I don't understand what you said

math
The mean of Alice's last 5 math test scores is 88. The first 4 of these 5 math test scores were 87, 75, 93, and 85. What score did Alice earn on her fifth math test?

math
the final grade for a particular course is calculated by dividing total points earned by total points available. There are 6 quizzes worth 15 points each, and 2 exams worth 50 points each. If a student earns 67 points total on the quizzes and wants to get

Algebra
Amy earns a weekly paycheck consisting of base pay of $225, plus a commission of 4.8% of her weekly sales. (a) Write an equation that can be used to determine Amy’s weekly paycheck P, given the amount of weekly sales s. (b) Determine Amy’s weekly

math
on two tests so far this year a student received a 78 and a 93 the student want an average between 80 and 90 inclusive what are all of the possible scores for the third test so that the student falls within this average

statistics
2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule? 3. If we are focused on 68% of the normal distribution, what percentage of the distribution is left in the upper tail only? 4. What value