The mean grade of in the final examination in the mathematics was 85 and tje standard deviation was 7.in science , his mean grade was 89 and the standard deviation was 13. Answer the problem below, show your solution1. The mean grade of in the final examination in Mathematics was 85 and the standarddeviation was 7. In Science, his mean grade was 89 and the standard deviation was13. He scored 90 in Mathematics and 94 in Science. In which subject was his standinghigher?2. The number of computers soid per day at a local computer sore along with itscorresponding probabilities, is shown in the table. Find the variance and standarddeviation of the distribution.Number of Computers Sold (X)0.Probability P(X)0.10.20.310.230.22322

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Description: The mean grade of in the final examination in the mathematics was 85 and tje standard deviation was 7.in science , his mean grade was 89 and the standard deviation was 13. Answer the problem below, show your solution1. The mean grade of in the final

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

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The mean grade of in the final examination in the mathematics was 85 and tje standard deviation was 7.in science , his mean grade was 89 and the standard deviation was 13.

Answer the problem below, show your solution
1. The mean grade of in the final examination in Mathematics was 85 and the standard
deviation was 7. In Science, his mean grade was 89 and the standard deviation was
13. He scored 90 in Mathematics and 94 in Science. In which subject was his standing
higher?
2. The number of computers soid per day at a local computer sore along with its
corresponding probabilities, is shown in the table. Find the variance and standard
deviation of the distribution.
Number of Computers Sold (X)
0.
Probability P(X)
0.1
0.2
0.3
1
0.2
3
0.2
2322

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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