Given the following GPA for 4 students: 2, 3, 3, 4. Age of students are: 10, 11, 12, 15. There are 10,000 total students. Average GPA: Unknown, Standard Deviation of GPA: 0.02 and it’s Normal. a. Find the mean and standard deviation for GPA. b. Calculate a 95% confidence interval for the populations mean GPA. c. Use Correlation formula to find r between GPA and Age. d. Find Regression Line

Q: The number of goals scored by a college soccer team for a given season are 4, 9, 0, 1, 3, 12, 3, 7,…

A: The population mean is, μ=∑xN=4+9+0+1+3+12+3+7+4+5+8+212=5812=4.8333 The population mean is 4.8333.

Q: For this set of data, the standard deviation (s) is equal to: 9, 8, 10, 5, 5, 2, 3, 6, 3

A: Mean:The formula for finding mean is shown below:

Q: for this set of data, the standard deviation is equal to: 9,8,10,5,5,2,3,6,3

A: Mean:The formula for finding mean is shown below:

Q: QUESTION 6 Given an x-mean of 15 and a y-mean of 12.2, calculate the crossproduct of x=15 and y=8.

A: When x=15 and y=8 Crrosproduct =x*y = 15*8

Q: 1.Find the mean and standard deviation for the data

A: Given: No. of batteries, n=10 Time (x) 397 355 415 395 352 436 327 417 276…

Q: Find  Variance and Standard deviation for the following data.  4,  4,  7,  11,  14.

A: Given sample xi is:  4, 4, 7, 11, 14  Sample size, n = 5   Sample mean can be calculated as:…

Q: Suppose the life span of a brand of lightbulbs is normally distributed with a mean of 2000 hours and…

A: It is given that  Mean, μ = 2000 Standard deviation, σ = 320 Z-Score, Z = ( X - μ )/σ

Q: Given the population data: 3, 6, -1, -9, -11.5, -19, 24, 100, 241, 325, 68, 22, 6, 24, 25 Find the…

A: The question is about measures.Given :No. of observations ( N ) = 15To find :a ) Meanb ) Medianc )…

Q: What is the Z value for a value of X = 60?

A:

Q: 1. Find the mean, the variance and the standard deviation for the data. {18, 18, 19, 18, 18, 25, 29,…

A: Given data is : 18,18,19,18,18,25,29,30,26,19 To find mean, standard deviation, and variance.

Q: 13.) In the following dataset: 2, 3, 3, 1, 4. What are the Mean and Standard Deviation (estimate of…

A: q-13 x x2 2 4 3 9 3 9 1 1 4 16 ∑x  = 13 ∑x2 = 39   sample size (n) = 5

Q: Calculate mean deviation from (i) mean and (ii) Median for the following data. Also calculate…

A: Mean deviation are easily calculated and it involve all the observations in the data set. But it is…

Q: The average number of days absent per student per year at West Valley School is 17 days with a…

A: mean = μ = 17standard deviation = σ = 4

Q: 3. Given the following GPA for 4 students: 2, 3, 3, 4. Age of students are: 10, 11, 12, 15. There…

A:

Q: In an experiment the sorption was measured for a variety of hazardous organic chloroalkane solvents.…

A: Solution: x (x-x) (x-x)2 1.18 0.2362 0.05579 1.35 0.4062 0.164998 0.57 -0.3738 0.139726…

Q: Give the mean and the standard deviation of the distribution of means for mean=100; Variance=100;…

A:

Q: We have a distribution with a mean of ? = 78.0 and ? = 12.5. Find the raw score equivalents for the…

A: We have given that.   X~N( μ , ?^2 )   μ =78 , ? =12.5   Z-score =( x - μ )/?   NOTE:- According to…

Q: 1.2, 2.7, 5.3, 3.4, 4.1,4.6, 3.3, 2.6. Find the standard  deviation

A:

Q: We have a distribution with a mean of ? = 35 and ? = 3.5. Find the raw score equivalents for the…

A:

Q: Find the range, sample standard deviation and sample variance on the following given. Round off into…

A:

Q: A sample of data is given as below:3, 5, 7. What is the standard deviation

A: The formula for sample standard deviation is,

Q: 1. A survey was given to 18 students. One question asked about the one-way distance the student had…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: On the final exam, your friend scored a 93 and you scored a 85. The scores are normally distributed…

A: Obtain the Z-score for the random variable X equals 85. The Z-score for the random variable X equals…

Q: The mean value for the given data set is equal to 1.0. {-4. -2, 3. 8, . 3.-1, 4) You are required…

A: The given data is: -4, -2, 3, 8, ... , 3, -1, 4 Let the missing number be: x (1). Therefore the mean…

Q: Rank the data sets described in order of the least spread out (1) to the most spread out (5) based…

A:

Q: n an experiment the sorption was measured for a variety of hazardous organic chloroalkane solvents.…

A: Given data, 1.28, 1.35, 0.57, 1.16, 1.12, 0.91, 0.83, 0.43 n=8