In a certain test in Calculus, the mean score of a group of 100 students was 30 and the standard deviation was 8. In a test in Physics, the mean was 52 and the standard deviation was 6. If a student scored 65 in Calculus and 70 in Physics, in which test did the student perform better?

Q: After entering the test scores from her Statistics class of 25 students, the instructor calculated…

A: IQR is obtained as the difference between the third and first quartiles.

Q: Lindsey and Karen began arguing about who did better on their tests, but they couldn't decide who…

A: Lindsey (Art History) 70.7 9.4 81.1 Karen (Social Studies) 61 9.6 70.7 a) Calculate the…

Q: Corey and Noah began arguing about who did better on their tests, but they couldn't decide who did…

A: Note: Hi there! Thank you for posting the question. Here to avoid the plagiarism issue we have used…

Q: If in a data set the observation 78 has z-score equal -0.60 and the observation 88 has z- score…

A:

Q: If the scores on a test have a mean of 26 and a standard deviation of 4, what is the z score for a…

A: We want to Z-score

Q: Jacy and Bella began arguing about who did better on their tests, but they couldn't decide who did…

A: GivenJacy took a test in Math and earned a 78.2 Bella took a test in social studies and earned a…

Q: uppose a student got an examination score of 90 in Statistics and Probability, where the mean was 75…

A: We have given that.   X~N( μ , ?^2 )   μ=75     , ?=5  , X=90      for  istatistics and…

Q: at on one section of the SAT the mean is 500 and the standard deviation is 100, what is the…

A: From the given information, Consider, X be the random variable that shows the scores of a students…

Q: In a population with mean 50 what standard deviation score would have a score of X=45

A:

Q: Emily and Hillary began arguing about who did better on their tests, but they couldn't decide who…

A: Note: Hi there! Thank you for posting the question. To avoid the Plagiarism issue we have used the…

Q: On a nationwide math test, the mean was 69 and the standard deviation was 7. If Roberto scored 80,…

A: Given,mean (μ)=69standard deviation (σ)=7andRoberto score(X)=80

Q: Nate and Brendan began arguing about who did better on their tests, but they couldn't decide who did…

A:

Q: A student learns that on his most recent exam in psychology, the sample mean was 72.19 with a…

A:

Q: On a nationwide math test, the mean was 52 and the standard deviation was 4. If Roberto scored 85,…

A: The z score formula is,

Q: Kevin and Bill began arguing about who did better on their tests, but they couldn't decide who did…

A: Given information English class Bill Marks x = 66.3 Mean µ = 66.8 Standard deviation σ = 10.5 Social…

Q: DeAndre and Jonah began arguing about who did better on their tests, but they couldn't decide who…

A: GivenDeAndre earn in science=81.2Jonah earn in Art History=61.9For science Mean(μ)=72.2standard…

Q: Bill scored 35 on a college algebra exam, where the mean was 25 and the Standard Deviation was 5.…

A: Given that the score for algebra exam is 35, mean is 25 and standard deviation is 5. z score for…

Q: In a Science test, the mean score is 42 and the standard deviation is 5. Assuming the scores are…

A: Given: The mean score of a Science test is μ=42. The standard deviation is σ=5. Let X be a random…

Q: In the final Examination in Statistics, the mean grade was 82 and the standard deviation was 8. In…

A:

Q: The mean score of the students on pre-assessments is 10 and the standard deviation is 2. What was…

A:

Q: Taylor and Meredith began arguing about who did better on their tests, but they couldn't decide who…

A: A z-score is the standard score that determines how much the data point deviates from the population…

Q: For a set of data, μ = 71, X=35, z = -0.60. What is the standard deviation of the population?

A: Given that.   X~N( μ , ?^2 )   μ=71   , ?=?  , X=35 , z=-0.60   Z-score =( x - μ )/?

Q: On a nationwide math test, the mean was 58 and the standard deviation was 4. If Roberto scored 70,…

A:

Q: If the standard deviation of a data set was originally 5, and if each value in the data set was…

A: Given that  The Standard deviation is 5

Q: According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the…

A: Given X is normal Distributed with mean µ = 65.0 and standard deviation σ = 3.0 Need to find Z score…

Q: Brianna and Miranda began arguing about who did better on their tests, but they couldn't decide who…

A: Introduction: For a random variable, X with mean μ, and standard deviation σ, the z-score is given…

Q: Stacy and Danielle began arguing about who did better on their tests, but they couldn't decide who…

A: Obtain the z-score for Stacy's test grade. The z-score for Stacy's test grade is obtained below:…

Q: When I need to determine which standard deviation would give the better grade, what if the z-score…

A: If the absolute value of z-score is higher than the other then it will provide better grade.

Q: Suppose that Jett achieves a score of 1250 on the SAT, and his sister Kate scores 29 on the ACT. The…

A: Given information- For SAT scores- Population Mean µ = 1100 Standard deviation (σ) = 250 For ACT…

Q: A student scored 66 on a general science test where the class mean and standard deviation were 82…

A:

Q: If the mean is 8.35, and the standard deviation is 2.5, what will be the answer to this? How many…

A:

Q: The mean grade of Adrian in the final examination in mathematics was 85 and the standard deviation…

A: 1) Given that: Mean for mathematics = 85 Standard Deviation for mathematics = 7 Mean for science =…

Q: A student scored 76 on a general science test where the class mean and standard deviation were 82…

A: For Science x¯=82s=8x=76 z=x-x¯s=76-828=-0.75

Q: Miranda and Alma began arguing about who did better on their tests, but they couldn't decide who did…

A: Given information- We have given that Miranda took test in social studies and earned a 71.5. And…

Q: Suppose you are told that you scored  two standard deviations below the mean on a measure where the…

A:

Q: Florida State University, the mean IQ is 116 with a standard deviation of 14. Given this…

A: In the School of Medicine at Florida State University, the mean IQ is 116 with a standard deviation…

Q: Miranda and Karla began arguing about who did better on their tests, but they couldn't decide who…

A: Miranda's test grade (Social Studies) 71.4 75.3 10.7 Karla's test grade (Art History) 60.9…

Q: Rachael and Autumn began arguing about who did better on their tests, but they couldn't decide who…

A:

Q: n which test did she perform better?

A: Here use standard normal variable Z for comparison  Here mean and standard deviation is from 200…

Q: Suppose you have already calculated the mean, the average deviation, and the standard deviation of…

A: (a) Condition for Average Deviation: If the value of the observation is increased or decreased by a…

Q: In a test, the average of the grades is 80 and the standard deviation is 5. John's grade is 70, so…

A:

Q: Logan and Brian began arguing about who did better on their tests, but they couldn't decide who did…

A:

Q: Given that the mean of a set of data is 25 and the standard deviation is 3, what is the coefficient…

A: Given: Mean = 25 Standard deviation = 3

Q: If the coefficient of variation for a data is given as  35%, and the standard deviation for the same…

A: Given that Coefficient of variation, C.V =  35% And the standard deviation is SD = 32

Q: In a multiple-choice examination in Chemistry, students Mikasa and Jean received scores of 82 and…

A: Given problem Given that   In a multiple-choice examination in Chemistry, students Mikasa and Jean…

Q: In ABC High School, the mean IQ test score of the first year students is 102 and the standard…

A: For the given data  What is the z-score of a student whose IQ test score is 106?

Q: The mean grade of Adrian in the final examination in mathematics was 85 and the standard deviation…

A: For mathematics :mean(μ)=85standard deviation(σ)=7For sciencemean(μ)=89standard deviation(σ)=13

Q: The average score on the Stats midterm was 71 points with a standard deviation of 5 points, and…

A: Given that mean = 71 and SD = 5 And the z score is given by Z = 1

Q: The mean grade of  Adrian in the final examination in mathematics was 85 and the standard deviation…

A: Mean for mathematics = 85 Standard Deviation for mathematics = 7 Mean for science = 89 Standard…

Q: Suppose the main percentage in algebra is 70% and the standard deviation is 8% What percentage of…

A: Given,  mean value(μ) =70%  standard deviation(σ) = 8%Z=x-μσZ1=62-708=-1Z2=94-708 =3