I need help with part 3 -Suppose you want to find the weighted mean using equal weights. What would each weight be? Answer: 26.3minutesPart B: Suppose you want to find the weighted mean usingequal weights. What would each weight be?Answer: Each weight =Question Help: Message instructorCalculatorSubmit Question% > Next question You can retry this question belowThe following table shows one runner's finish times (given inminutes) for eight different 5K races.25.95 26.5 24.53 28.53 25.02 27.73 26.85 25.58Part A: Determine the mean finish time. Round to the nearestthousandth.Answer: 26.3minutes

Answered: Part B: Suppose you want to find the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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I need help with part 3 -Suppose you want to find the weighted mean using equal weights. What would each weight be?

Answer: 26.3
minutes
Part B: Suppose you want to find the weighted mean using
equal weights. What would each weight be?
Answer: Each weight =
Question Help: Message instructor
Calculator
Submit Question
%

> Next question You can retry this question below
The following table shows one runner's finish times (given in
minutes) for eight different 5K races.
25.95 26.5 24.53 28.53 25.02 27.73 26.85 25.58
Part A: Determine the mean finish time. Round to the nearest
thousandth.
Answer: 26.3
minutes

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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