Juan’s first 3 exam scores are 85, 93, and 87. What does he need to score on his next exam to average 90 for all 4 exams? let x represent the score on his next exam (put this in a
5,926 results
MATH
(4 pts) The score on an exam from a certain MAT 112 class, X, is normally distributed with \mu = 77.6 and \sigma = 10.9. NOTE: Assume for the sake of this problem that the score is a continuous variable. A score can thus take on any value on the continuum.

statistics and probability
It is known that an exam scores of students in STAT 2507 follow a normal distribution with a mean of 70% and a standard deviation of 9%. (A) If a student must obtain a mark of 50% to pass the exam, what proportion of students fail the exam? (B) What is the

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
A math professor notices that scores from a recent exam are normally distributed with a mean of 64 and a standard deviation of 5. Answer the following questions using integer values. What score do 75% of the students exam scores fall below? And, how was

Statistics
5. Scores on a recent national statistics exam were normally distributed with a mean of 80 and a standard deviation of 6. a. What is the probability that a randomly selected exam will have a score of at least 71? b. What percentage of exams will have

Statistics: IQ Score (X) and Exam Score (Y)
Assuming that the regression equation for the relationship between IQ score and psychology exam score is Y' = 9+ 0.274X, what would you expect the psychology exam scores to be for the following individuals given their IQ exam scores? Individual Tim Tom

Math
For a class test, the mean score was 65, the median score was 71 and sthe standard deviation of the scores was 7. The teacher decided to add 5 points to each score due to a grading error. Which of the folloiwng must be true for thenew scores? TH

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 preexam totals for all students in the course have a mean of 275 and a standard deviation of 26. The

Math
Exam scores were normal in MIS 200. Jason's exam score was 1.41 standard deviations above the mean. what percentile is he in?

statistics
the five number summary of the distribution of scores on a statistics exam is 0 26 31 36 50 316 students took the exam. the histogram of all 316 scores was approximately normal. Thus the variance of test scores must be about I know about subtracting 2631

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

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

Math
A class of 12 students has taken an exam, and the mean of their scores is 71. One student takes the exam late, and scores 92. After including the new score, what is the mean score for all 13 exams?

Statistics
Suppose a certain entrance exam has scores that are normally distributed with a mean score of 78 and a standard deviation of 7. What is the probability that a randomly selected student scores higher than 75 on the exam?

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

Math (Algebra 1)
Juan’s first 3 exam scores are 85, 93, and 87. What does he need to score on his next exam to average 90 for all 4 exams? let x represent the score on his next exam (put this in a multistep equation) PLEASE HELP

statistics
Suppose that the average score on the GMAT exam is 500 and that the standard deviation of all scores is 100 points. You would expect approximately 95% of all GMAT scores to be between

Statistics
bob received a z score of 0.9 on a college entrance exam. If the raw scores have a mean of 540 and a standard deviation of 80 points,what is his raw score?

statistics
For a particular sample of 50 scores on a psychology exam, the following results were obtained. Mean = 78 Midrange = 72 Third quartile = 94 Mode = 84 Median = 80 Standard deviation = 11 Range = 52 First quartile=68 What score was earned by more students

stats
Katie must take five exams in a math class. If her scores on the first four exams are 77, 79, 95, and 93, what score must Katie get on the fifth exam for her overall mean to be at least 80? The maximum score on an exam is 100 points. If it is not possible

eced
A correlatibas .82 was found betweenen number of hours studied and final exam scores. A.students who stuief less received a high exam scores. B.students who studied who studied received lower exam scores. C.studying caused studies to received higher exam

math
13. A set of final exam scores in an organic chemistry course was found to be normally distributed, with a mean of 73 and a standard deviation of 8. What is the probability of getting a score higher that 71 on this exam?

statistics
A set of final exam scores in an organic chemistry course was found to be normally distributed, with a mean of 73 and a standard deviation of 8. What is the probability of getting a score higher than 71 on this exam?

statistics
1. The exam scores for the students in an introductory statistics class are as follows. 88 63 90 64 82 98 96 75 89 86 76 84 70 67 34 89 85 39 81 96 92 85 a. Compute the mean and the median score. b. Identify the shape of the distribution of score. Explain

statistics
Can you please tell me how to solve for the following? Pedro took an exam in a class in which the mean was 64 with a standard deviation of 6. If his z score was +3, what was his exam score? A students commute to school is normally distributed with a mean

stats
scores on a University exam are normally distributed with a mean of 68 and a standard deviation of 9. use the 689599.7 rule to answer the following questions 1) what proportions of students score between a 59 to 77? 2) what proportions of students score

statistics
For a particular sample of 80 scores on a psychology exam, the following results were obtained. First quartile = 65 Third quartile = 98 Standard deviation = 8 Range = 56 Mean = 83 Median = 81 Mode = 59 Midrange = 64 Answer each of the following: I. What

statistics
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 47 Third quartile = 81 Standard deviation = 11 Range = 68 Mean = 70 Median = 71 Mode = 77 Midrange = 55 Answer each of the following: I. What

Stastistics
A linear regression line y = 0.8x10 is computed to predict the final exam score y on the basis of the first score x on the first test. Maria scores 78 on her first test. What would be the predicted value of her score on the final exam?

statistics
say that you have a distribution of exam scores with a mean of 57 and a standard deviation of 7. if a student in the class has a standard score equal to 2.429, what would their raw score on the exam be?

statistics
4. Suppose you administered an anxiety test to a large sample of people and obtained normally distributed scores with a mean of 45 and standard deviation of 4. Do not use webcalculator to answer the following questions. Instead, you need to use the Z

Statistics
4. The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems: (a) draw a rough sketch,

Statistics
4. The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems: (a) draw a rough sketch,

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, midterm, and final exams. According to the course syllabus, the classwork accounts for

statistics
assuming that you wished to have the highest possible score on an exam relative to ht e other scores, would you rather have a score of 70 on a test with a mean of 60 and a standard deviations of 5.2 or a score of 81 on a test with a mean of 79 and a

writing inequalities
you must have an average score of at least 80 to get a B on your report card. You have scores of 61,70,99, and 70. What is the minimium score you must get on the last test to get a B on your report card? the minimum score you can make and receive an 80 is

statistics
Answer the following. Show your work to get credit. Exam scores are normally distributed with a mean of 81 and a standard deviation of 9. a) What is the minimum score one must have to be in the top 4% of the students taking the exam? b) What percentage of

Math Statistics
Answer the following. Show your work to get credit. Exam scores are normally distributed with a mean of 81 and a standard deviation of 9. a) What is the minimum score one must have to be in the top 4% of the students taking the exam? b) What percentage of

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

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 preexam totals for all students in the course have mean 275 and standard

MATH
Katie must take five exams in a math class. Her scores on the first four exams were 68, 66, 82, and 80. Answer the following questions: The maximum score on an exam is 100 points. If it is not possible for Katie to achieve the required score on the exam,

statistics
Scores on a national exam assume a normal distribution with a population mean of 50 and population standard deviation of 10 points. A sample of 36 exam scores was selected from UCA with a mean score of 58 points. Using a significance level of 0.01,

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

statistics
The average score on a particular exam is determined to be 84.35 with a standard deviation of 7.4. Assume the scores are normally distributed. Applicants with exam scores in the lower 10% directed to special retraining. What is the minimum score required

math
An average score of 90 or above in a history class receives an A grade. You have scores of 90, 89, and 85 on three exams. Find the range of scores on the fourth exam that will give you an A grade for the course. (Let N stand for your score on the fourth

Math
Distribution of exam 2 scores is unimodal and symmetric with a mean of 78 and a standard deviation of 4.6 points. What exam score corresponds to z score of 2.46

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

Stats
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 I. What score was earned by more

Stats
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 Answer each of the following: I. What

Can somehelp me with this ASAP plz?!?!?! Stats
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 I. What score was earned by more

Stats
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 I. What score was earned by more

statistics
For a particular sample of 53 scores on a psychology exam, the following results were obtained. First quartile = 44 Third quartile = 68 Standard deviation = 8 Range = 55 Mean = 54 Median = 54 Mode = 71 Midrange = 64 I. What score was earned by more

Statistics
Given that a population of scores is normally distriibuted with u=100 and o=8, determine the following: a. The percentile rank of a score of 120 b. The perentage of scores that are below a score of 99 c. The percentage of scores that are between a score of

statistics
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 72 Standard deviation = 9 Range = 52 Mean = 72 Median = 68 Mode = 70 Midrange = 57 Answer each of the following: I. What

Statistics
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 Answer each of the following: I. What

Statistics
For a particular sample of 63 scores on a psychology exam, the following results were obtained. First quartile = 57 Third quartile = 87 Standard deviation = 9 Range = 51 Mean = 72 Median = 72 Mode = 98 Midrange = 57 Answer each of the following: I. What

math
Doug had scores of 80, 85, 75, and 80 on his first four exams in a course. a. Find the mean, median, and mode for these exam scores. b. Which “average” would Doug want the teacher to use in determining his grade? c. What score would Doug have to get on

Math
Doug had scores of 80, 85, 75, and 80 on his first four exams in a course. a. Find the mean, median, and mode for these exam scores. b. Which “average” would Doug want the teacher to use in determining his grade? c. What score would Doug have to get on

statistics
The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. What percentage score above 1300? What percentage score above 800?

stats
2. A standardized exam was provided to all 3rd graders in Arizona schools. The average score was 75 with a standard deviation of 10. Assuming that the scores were normally distributed, answer the following questions. (a) What zscore corresponds with a

statistics
The scores on the final exam in a course have approximately a bellshaped distribution. The mean score was 72, the highest score was 99, and the lowest score was 41. Use the value of the range (58) to estimate the value of the standard deviation. (Round

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

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

statistics
The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. Which portion of the bell curve relates to the answer? What is the

math
Julia's English test score is 11 points more than Juana's, and Juan's English test score is 6 points less than Juana's. Julia and Juan's scores are added to 183 points. What's the test score of Juana? Use the equation to solve the problem. Set the variable

math
Students were given an exam with 300 multiplechoice questions. The distribution of the scores was normal and mean was 195 with a standard deviation of 30. You may find it helpful to draw out this distribution before answering the questions below What were

Statistics
The Graduate Record Exam has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. A. What percentage of the persons who take the test score above 1300? b.

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

Math
First period: 85, 83, 74, 70, 88,95,89,72,90,83,77,91,98,89,82,84 Second period: 95,89,82,81,72,69,100,97,75,91,82,79,96,81,80,95,89,97,83,71 Mark is a student in the first period class. His score on the exam was 95%. Zoe is a student in the second period

statistics
7 men and 3 women are ranked according to their scores on an exam. Assume that no two scores are alike, and that all 10! possible rankings are equally likely. Let X denote the highest ranking achieved by a man (so X=1 indicates that a man achieved the

probability
7 men and 3 women are ranked according to their scores on an exam. Assume that no two scores are alike, and that all 10! possible rankings are equally likely. Let X denote the highest ranking achieved by a man (so X=1 indicates that a man achieved the

statistic
In a population of exam scores, a score of X 48 corresponds to z1.00 and a score of X 36 corresponds to z –0.50. Find the mean and standard deviation for the population. (Hint: Sketch the distribution and locate the two scores on your sketch.) A

statistics
for a particular sample of 77 scores on a psychology exam the following results were obtained: first quartile=44 third quartile= 71 standard deviation=6 range=45 mean= 64 median= 57 mode = 92 midrange=60 answer each of the following: a) what score was

statistics
4. The Graduate Record Exam (GRE) has a combined verbal and quantitative mean of 1000 and a standard deviation of 200. Scores range from 200 to 1600 and are approximately normally distributed. For each of the following problems: (a) draw a rough sketch,

Statistics
Students were given an exam with 300 multiplechoice questions. The distribution of the scores was normal and mean was 195 with a standard deviation of 30. What were the scores of the students who were within one standard deviation of the mean? What

Statistics
Scores on a mathematics examination appear to follow a normal distribution with mean of 65 and standard deviation of 15. The instructor wishes to give a grade of “C” to students scoring between the 60th and 70th percentiles on the exam. What score

Statistics
Scores on a mathematics examination appear to follow a normal distribution with mean of 65 and standard deviation of 15. The instructor wishes to give a grade of “C” to students scoring between the 60th and 70th percentiles on the exam. What score

statistics
Last week Tom had exams in Math and in Spanish. He had a score of 45 on the Math exam and a score of 65 on the Spanish exam. For which class should Tom expect the better grade? a. Math b. Spanish c. The grades should be the same because the two exam scores

statistics
Suppose that the mean score of an exam was 77 when taken 30 students took it on time with a standard deviation of 2. A makeup of the same exam is given to 6 students. The retakes averaged a score of 83 with a standard deviation of 2.9. What is the average

statistics
Suppose that the mean score of an exam was 77 when taken 30 students took it on time with a standard deviation of 2. A makeup of the same exam is given to 6 students. The retakes averaged a score of 83 with a standard deviation of 2.9. What is the average

stats
3. For a particular sample of 50 scores on a psychology exam, the following results were obtained. Mean = 78 Mode = 84 Median = 80 Standard deviation = 11 1. What score was earned by more students than any other score? Why? 2. What is the variance?

statistics
A large group of students has taken a college entrance exam. The scores on the exam are such that the mean = 52 and the standard deviation = 11 Find the probability that a student, selected at random, earned a score lower than 63.

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.

statistics
Suppose we have a population of scores with a mean (μ) of 200 and a standard deviation (σ) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would

stats
Suppose we have a population of scores with a mean (μ) of 200 and a standard deviation (σ) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would

Statistics
Suppose we have a population of scores with a mean (ì) of 200 and a standard deviation (ó) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would

Statistics
Suppose we have a population of scores with a mean (ì) of 200 and a standard deviation (ó) of 10. Assume that the distribution is normal. Provide answers to the following questions: What score would cut off the top 5 percent of scores? What score would

statistics
Assume that the regression equation for the relationship between SAT scores and IQ scores is y = 9 +.105x. What would you expect the IQ score to be for the following individuals, given their SAT scores? Individual SAT Score IQ Score Susan 850 Sally 1175

MEDIAN AND MEAN
The following scores were recorded on a 200 point final exam.193, 185, 163, 186, 192, 135, 158, 174, 188, 172, 168, 183, 195, 165, 183 Find the mean final exam score. A)183 B)185 C)176 I CHOSE A Find the median final exam score. A) 176 B) 183 C) 185 i

algebra 2
Consider the exam data below. Algebra score: 20 35 13 29 40 23 Calculus score: 41 69 34 72 86 58 Use your calculator to find the regression line for this data, and graph it on your scatterplot. b. Interpret the slope and intercepts of this line in the

Algebra
To pass a course you need an average score of 60 or more. If your scores are 66, 72, 90, 49, and 59, find the minimum score that you can get on the 6th and last exam to pass the course.

programming
would someone be able to give me an idea of how to start coding this in C? You just finished playing cards with a group of friends and each time your score changed in the game you wrote it down. Given the total number of points it takes to win the game and

English
1. What score did you get? I got 22. 2. What is your score? It is 22. 3. How much score did you get? I got 22. 4. How many scores did you get? I got 22. (Are all grammatical and the same?) 5. Add up all the scores, and then you can get the total score.

stat
a full scholarship to any student who scores in the top 4% of students on the SMRT standardized exam. SMRT scores have a mean of 260 and a standard deviation of 22. What score does a student need to attain in order to receive the scholarship? this is how I

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

Statistics
In a normal distribution of scores, four participants obtained the following deviation scores: 11, 22, 15, and 210. (a) Which score reflects the highest raw score? (b) Which score reflects the lowest raw score? (c) Rankorder the deviation scores in terms

statistics
A set of seven scores has a mean of 10. If one of the scores is changed from X=15 to X=1, what will be the new value for the new mean? A sample of n=8 scores has a mean of M=12. One new score is added to the same and the new mean is found to be M=13.

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

Statistics
In a normal distribution of scores, four participants obtained the following deviation scores: +1, 2, +5, and 10. (a) Which score reflects the highest raw score? (b) Which score reflects the lowest raw score? (c) Rankorder the deviation scores in terms

Math
Going into the final exam which will count as twothirds of the final grade, Mike has test scores of 86,80,84,and 90. What score does he need on the final to earn an average score of 80? Is this right: (86+80+84+90)/4 = 80 2/3x(85)= 80 or