Answered: A company is looking at how many care…

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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Question

A company is looking at how many care packages their employees make per hour. The data is summarized below.

What is the estimated mean number of care packages made per hour?

Round your answer to 4 decimal places.

can you tell me how they got this answer??

A company is looking at how many care packages their employees make per
hour. The data is summarized below.
9
8
7
6
Frequency
S
3
2
1
0
1 to 4
5 to 8
9 to 12
13 to 16
17 to 20
Number of care packages assembled per hour
What is the estimated mean number of care packages made per hour?
Round your answer to 4 decimal places.
11.2619
11.2619 (with margin: 0)

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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