Answered: What is the variance and standard…

What is the variance and standard deviation of the following data: "20.3" "33.5" "21.8" "58.2" "23.2" "110.4" "30.9" "24.4" "74.6" "60.4" "40.8"

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: Which of the following are measures on positions of a data set? 1. the third qurtile 2. the median…

A: The third quartile, the median and the maximum measures the positions of a data set.

Q: Blood sugars from eight patients in a rural clinic were recorded last summer by the local physician.…

A: Given blood sugar results are120,145,200,250,79,100,894,255sample size(n)=8

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below.…

Q: The weights of a certain dog breed are approximately normally distributed with a mean of 51 pounds,…

A: Let random variable X be The weights of a certain dog breed.X has normal distribution with…

Q: The summary data from study demonstrates a stronger relationship between how many minutes per day a…

A: Given : A standard deviation is a measure of how dispersed the data is in relation to the mean. Low…

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: The following data are the GPA’s of 12 students at State University. Determine the mean, median,…

Q: Suppose phone bills have a mean of $78 and a standard deviation of $8. How much would a phone bill…

Q: Suppose that the mean of a set of data is 50.2 and the standard deviation is 4.2. Assume that the…

A: Given μ=50.2, σ=4.2, h=5.1 We want to find the new mean and standard deviation.

Q: For the following data: X= [ 1 , 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, ,8 ,9] Find: A)…

A: Formula to calculate mean is, Mean=Sum of all observationsNumber of obervations Formula to calculate…

Q: Use the magnitudes (Richter scale) of the 120120 earthquakes listed in the accompanying data table.…

A: Given that,120 magnitudes of earthquake,We want to find the range, variance and standard…

Q: Lightbulbs are measured in lumens (light output), watts (energy use), and hours (life). A standard…

A: Given:- Standard white light bulb mean = 675 hours…

Q: 4. For the following data, find the sample variance and sample standard deviation: -6, 6, 6, 0, -6,…

Q: In a normally distributed data set a mean of 55 where 95% of the data fall between 47.4 and 62.6,…

Q: Calculate the standard deviation of the following data set:- 23 54 32 46 18

Q: Suppose that the amount of caffeine (in milligrams) in an 16 fluid ounce energy drink can be modeled…

A: the PDF of normal distribution is = 1/σ * √2π * e ^ -(x-u)^2/ 2σ^2standard normal distribution is a…

Q: A college admissions office needs to compare scores of students who take the SAT vs ACT. The…

A: Given,For SATMean, μ1 = 896Standard deviation, σ1 = 174For ACTMean, μ2 = 20.6Standard deviation, σ2…

Q: Give the TI commands to find the mean, median, and standard deviation and compare to the original…

A: TI Calculator

Q: We considered the differences between the temperature readings in January 1 of 1968 and 2008 at 51…

Q: A student scores 74 on a geography test and 264 on a mathematics test. The geography test has a mean…

A: The mean and standard deviation of geography test are 80 and 5, respectively.

Q: Find the standard deviation for the following data set. 2, 2, 2, 5, 5, 6, 6, 8, 8, 9 A. 2.49…

Question

What is the variance and standard deviation of the following data:

"20.3"
"33.5"
"21.8"
"58.2"
"23.2"
"110.4"
"30.9"
"24.4"
"74.6"
"60.4"
"40.8"

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

A community college Math instructor feels that the average age of community college students decreased since they started teaching 25 years ago. Looking up data from the year the instructor started teaching, the mean age of community college students was 24.3 years old, with a population standard deviation of 2.2 years. The Math instructor took a sample of 40 of their current community college students and found that the sample had a mean age of 23.7 years old. Assume the population of ages of community college students is normally distributed and that the population standard deviation has remained the same. Test at the 5% significance level if the mean age of community college students is now less than 24.3 years old. Choose the correct answer from the parenthesis. (i) Hypotheses ?0: ? = ( 0, 2.2, 22.7, 24.3, 25, 40) ______________ . ?1: ? = ( < , > ) ______________ ( 0, 2.2, 22.7, 24.3, 25, 40) ________________ . (ii) Test Statistic ( z/ t )…
Refer to the accompanying table, which describes the number of adults in groups of five who reported sleepwalking. Find the mean and standard deviation for the numbers of sleepwalkers in groups of five. E Click the icon to view the data table, The mean is sleepwalker(s). (Round to one decimal place as needed.) The standard deviation is sleepwalker(s). (Round to one decimal place as needed.) Table of numbers of sleepwalkers and probabilities P(x) 0.183 0.368 0.305 3 0.115 4. 0.025 0.004 Print Done Enter your answer in each of the answer boxes. a Speech Present.pptx 2 pecha kucha pr.pptx O Team Pecha Ku.docx ch4Bprac.pdf The Canaries pptx Show All MacBook Air 吕0 F3 esc F8 F9 F10 F1 F2 F5 F6 F7 @ #3 2$ & 3 7 8 Q W E Y U P T
Which of the following data sets has the smallest standard deviation? a. 1, 2, 3, 4, 5 b. 100, 100, 100, 100, 100 c. 100, 101, 102, 103, 104 d. 2, 4, 6, 8, 10
Find the range and standard deviation of the following set of data. 168, 177, 163, 174, 167, 186, 162
6.10 Males 20 to 29 years old have a mean height of 69.4 inches with a standard deviation of 3.5 inches. Females 20 to 29 years old have a mean height of 64.1 inches with a standard deviation of 3.1 inches. Find the standardized variable for the heights of males. Find the standardized variable for the heights of females. For a 68‐inch‐tall person, find the value of the standardized variable for males. For a 68‐inch‐tall person, find the value of the standardized variable for females. Compare your answer with part (c) and comment.
The length of time it takes for a worker to perform certain task (in minutes) was recorded for 10 workers. The resulting data values were the following: 5, 3, 11, 7, 6, 9, 4, 8, 7, 10 Find the mean, median, mode, range, variance and standard deviation. In the answers for the mean, variance, and standard deviation leave one digit after decimal point. a. Mean = d. Range = b. Median = e. Variance = c. Mode = f. Standard deviation =
A successful basketball player has a height of 6 feet 11 inches, or 211 cm. Based on statistics from a data set, his height converts to the z score of 5.17. How many standard deviations is his height above the mean?
A community college Math instructor feels that the average age of community college students decreased since they started teaching 25 years ago. Looking up data from the year the instructor started teaching, the mean age of community college students was 24.3 years old, with a population standard deviation of 2.2 years. The Math instructor took a sample of 40 of their current community college students and found that the sample had a mean age of 23.7 years old. Assume the population of ages of community college students is normally distributed and that the population standard deviation has remained the same. Test at the 5% significance level if the mean age of community college students is now less than 24.3 years old. The question is attached.
Please answer asap
Compute each of the single-variable statistics discussed in class for the data below: 84.7 58.2 89.1 89.7 44.3 91.9 68.3 84.1 94.9 58.2 Find the mean, median, mode, 1st quartile, 3rd quartile, standard deviation, range, variance.
The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Find the mean, median, mode, and standard deviation. Round to one decimal place as needed. 20, 23, 26, 28, 29, 31, 35, 35 Mean = Median Mode = Standard Deviation =