Answered: Use the following data set…

Use the following data set (2,3,4,4,6,7,8,12) The variance=10.5 Find the standard deviation and Coefficient of variation x x2

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: 1. Calculate the Range: 2. Calculate the Mean (2): 3. Calculate the Average Deviation : the Variance

A: It is given that the weight of grade 7 students of ETTMNIHS. Range: It is the difference between…

Q: The length (pgs) of math research projects is given below. Using this information, calculate the…

A: 1)From data minimum value is =15maximum value =47Hence range isRange=maximum - minimum = 47-15=…

Q: Compute the (sample) variance and standard deviation of the data sample. (Round your answers to two…

A: The data set is2, −3.4, 3.9, −0.8, −0.8Sample size(n)=5

Q: Find the range, the standard deviation, and the variance for the given samples. Round non-integer…

A: Given:- The sample data given as; 2,3,6,14,17,19,23 Let 'X' be given sample data values. To find:-…

Q: Assume the mean height of soldiers to be 68.22 inches with a variance of 0.8 inches. How many…

Q: Find the standard error, t statics Sample variance = .67 Sample size = 30 Population size = 60…

A: Given information- Sample variance, s2 = .67 So, sample standard deviation, s = 0.819 Sample size, n…

Q: Using the Data provided below, determine if the mean number of hours spent online per week is the…

A: Hypotheses for the test are given below:

Q: Which measure would you use to explore the dispersion of your data? Choose all. variance mean mode…

A: We have given that, Which measure would you use to explore the dispersion of your data?

Q: A population of grades for a statistics class of six students is given below: 90 65 70 85 86 70 Find…

A: given data : 90,65,70,85,86,70

Q: State the properties of Co- variance;

Q: Professor Hayashi wants to see if a new Canvas Homework system has an effect on how well students…

A: Effect Size: We want to compute the Cohen's d. The following information has been provided: Xˉ=81.7…

Q: The image database was collected through a questionnaire from a software engineering course.…

A: From the given information, It is required to compute the variance , standard deviation and…

Q: What percentage of the variation in can be explained by the corresponding variations in and taken…

A: X1 is the dependent variable X2 and X3 are the independent variables.

Q: A track coach creates a new training program to improve his team’s performance in the 200m race. He…

A: State the hypotheses.

Q: Suppose the variance of X is 95. What is the variance of .09X?

A: The objective of this question is to find the variance of a variable that has been scaled by a…

Q: Click on the Data button below to display the data. Copy the data into a statistical software…

A: Given data, Guernsey Jersey Holstein 4.59 5.03 3.22 5.2 6.55 3.67 5.61…

Q: Standard variation = 73.14: Calculate the Variance

A: Given : Standard variation = 73.14

Q: 2. The following table gives the number of refrigerators sold by 4 salesmen in three months May,…

A: The data is given as- Months A B C D May 50 40 48 39 June 46 48 50 45 July 39…

Q: Which of the following levels of variability (standard deviation or variance) would most likely…

A: The platykurtic curve has shorter peak and thinner tail compared to normal distribution. The excess…

Q: Suppose the variance of X is 33. What is the variance of .23X?

A: Given,Var(X)=33 we know that Var(ax)=a2Var(X)

Q: Consider the data below: 17, 11, 10, 13, 1, 6, 18, 21, 8, 5 Compute the variance Compute the

Q: Using this data set find variance and standard deviation: 9, 12, 13, 16, 23, 40, 48. Show your work

A: Given, the data for which we need to find variance and standard deviation The mean for the data is…

Q: Consider throwing a die 20 times. Let X be the number of times th outcome is less than 3. Find the…

A: Given that n=20 , p=2/6=1/3 , q=1-p=1-(1/3)=2/3 X=Number of times the outcomes less than 3…

Q: Give 2 examples of Variance and standard deviation for grouped data to coefficient of skewness and…

Q: What procedure is used to test whether two interval or ratio variables are related or not? A.…

Q: Given the sample data 6 10 12 12 11 17 9. Use the definition of sample variance to find the…

Q: The data below shows the overall miles per gallon (mpg) of 2021 small SUVs. What is the variance?…

A: Given data is24,23,22,21,22,22,18,18,26,26,26,19,19,19,21,21,21,21,21,18,19,21,22,22,16,16

Q: Mean 1 = 17, SD 1=7.89 Mean 2= 89, SD 2= 6.69 R = -0.84 What is the proportion of variance shared…

A: Obtain the value of the correlation. The value of the correlation is obtained below as follows: From…

Q: The systolic blood pressure of individuals is thought to be related to both age and weight. Let the…

A: From the given output, the correlation coefficient between x1 and x2 is 0.889.

Q: Find how to distribute the variance and standard deviation calculations across the nodes. Variance…

A: In statistics, variance is a measure of how the data points differ from the mean value. It measures…

Q: Please do not give solution in image format thanku Load "diabetes" datasets from SKlearn and do the…

A: 1import numpy as np 2import matplotlib.pyplot as plt 3from sklearn.datasets import load_diabetes…

Q: alculate the variance of 13, 25, and 16, using the sum of squares formula (also known as the…

A: We have given that data 13 ,25,16 I want to find variance Variance = (∑x2 - (∑x)2/n)/(n-1)

Q: Find the range, the standard deviation, and the variance for the given samples. Round non-integer…

A: Given information- We have given sample data. We have to find the range, the standard deviation, and…

Q: Marks obtained by students in a school examination follows a normal distribution. If 32% of the…

Q: 1, 5, 6, 9, 12, 12, 15, 23, 55 transfrom the data using yi=-2x+6. calcualte the mean, variance, and…

A: Let, the given values are x . x = 1, 5, 6, 9, 12, 12, 15, 23, 55 Substitute each value in the…

Q: Compute the (sample) variance and standard deviation of the data sample. (Round your answers to two…

A: From the provided information, The data values are as follow: -2, 5, 7, 2, 0, 3

Q: The mean age of children at the X College daycare center is 6. The ages are skewed in a negative…

A: μ=6 σ2= 5.1

Q: Calculate the variance.

A: Let X be the cost of the tickets. Sample size (n) = 9 To find the sample variance.

Q: Two companies produce widgets of varying quality. An important measure of quality is the number of…

A: The question is about hypothesis testing.Given :No. of observations under " company 1 " ( n1 ) =…

Q: Calculate the mean of the data, and then calculate the deviations for each of the 6 scores. Using…

A: 1. The mean of the data is, μ=1N∑xii=1n=6+10+9+13+14+116=636=10.5 Thus, the mean of the data is…

Question

100%

Use the following data set (2,3,4,4,6,7,8,12)

The variance=10.5

Find the standard deviation and Coefficient of variation

x	x²

Expert Solution

Step 1

We have given that,

The data set is,

2, 3, 4, 4, 6, 7, 8, 12

And variance = 10.5

Then,

We will find the value of standard deviation and coefficient of variation= ?

Step by step

Solved in 3 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Similar questions

The weight (in pounds) of a sample of 36 individuals was recorded, and the following statistics were calculated. mean = 160 range = 60 mode = 165 variance = 324 median = 170 The coefficient of variation is _____.
Assume a variable has only 3 observations: x1=1, x2=5, x3=6. What is the variance of this variable x? 8.6 None of others. 4.7 2.9
Suppose a car's city miles per gallon rating can be determined by the car's weight. The means and standard deviations of these variables and the correlation coefficient between them are reported in the following table: What proportion of the variability in cars' miles per gallon ratings is explained by the least squares line with weight?
Suppose the variance of X is 14. What is the variance of .47X?
Explain the possible reasons for the observed differences in the sample means. Account for the differences in the sample means of P1 and P2. Similarly, account for the differences in the sample means of the F1 and F2. Compare the difference in the parental generations with that in the filial generations.
Pls do fast its urgent and i will rate instantly for sure Solution must be in typed form
Actuaries use various parameters when evaluating the cost of a life insurance policy. The variance of the life spans of a population is one of the parameters used for the evaluation. Each year, the actuaries at a particular insurance company randomly sample 30 people who died during the year (with the samples chosen independently from year to year) to see whether the variance of life spans has changed. The life span data from this year and from last year are summarized below. Current Last Year Year x1 = 75.8 | x,= 76.2 si= 47.61 s3= = 92.16 (The first row gives the sample means and the second row gives the sample variances.) Assume that life spans are approximately normally distributed for each of the populations of people who died this year and people who died last year. Can we conclude, at the 0.05 significance level, that the variance of the life span for the current year, of, differs from the variance of the life span for last year, o,? Perform a two-tailed test. Then complete the…
Actuaries use various parameters when evaluating the cost of a life insurance policy. The variance of the life spans of a population is one of the parameters used for the evaluation. Each year, the actuaries at a particular insurance company randomly sample 30 people who died during the year (with the samples chosen independently from year to year) to see whether the variance of life spans has changed. The life span data from this year and from last year are summarized below. Current Last Year Year *1 = 75.8 x2 = 76.2 s3 = 47.61 s3= 92.16 (The first row gives the sample means and the second row gives the sample variances.) Assume that life spans are approximately normally distributed for each of the populations of people who died this year and people who died last year. Can we conclude, at the 0.05 significance level, that the variance of the life span for the current year, of, differs from the variance of the life span for last year, o,? Perform a two-tailed test. Then complete the…
The F-statistic is a ratio score resulting in a measure of the estimated proportion of variance due to the independent variable. True or false
Waterfall Heights Is there a significant difference at a=0.10 in the mean heights in feet of waterfalls in Europe and the ones in Asia? The data are shown. Use the critical value method with tables. Europe 487 470 900 Send data to Excel 1246 345 Part: 0/5 Part 1 of 5 614 350 722 Asia Use ₁ for the mean height of waterfalls in Europe. Assume the variables are normally distributed and the variances are unequal. 320 964 830 State the hypotheses and identify the claim with the correct hypothesis. Ho: (Choose one) ▼ H₁ (Choose one) ▼ This hypothesis test is a (Choose one) test. 0-0 0-0 X JE 5
Two companies produce widgets of varying quality. An important measure of quality is the number of days the widgets can go before they need to be replaced. Do the following data provide evidence that the quality of widgets from the two companies differ? Round the p-value to three decimal places. Do not assume equal variances. Widget Life in Days from Company 1 Widget Life in Days from Company 2 12.0 52.2 14.0 45.8 48.4 44.6 47.0 57.5 50.4 44.2 57.4 50.8 30.8 43.0 30.0
Q1. For the giving dataset (X) below, calculate the following X= (455.2, 676.7, 784.7, 349.1, 437.5, 678.3, 760.2, 788.4, 278.3 and 455.2} 1) The Range ( 2) The Mode 3) The variance ( ).