Do A and B please Complete parts (a) and (b).a. If three students scored 75 on a test and three other students scored 90 on the same test, find the mean, median, and mode for the test scores.b. The mean score on a set of 23 tests is 73. What is the sum of all the test scores?a. The mean of the test scores is(Round to one decimal place as needed.)an example Get more help.Clear all

Answered: Complete parts (a) and (b). a. If three…

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

Do A and B please

Complete parts (a) and (b).
a. If three students scored 75 on a test and three other students scored 90 on the same test, find the mean, median, and mode for the test scores.
b. The mean score on a set of 23 tests is 73. What is the sum of all the test scores?
a. The mean of the test scores is
(Round to one decimal place as needed.)
an example Get more help.
Clear all

Expert Solution

Step 1

The mean is the average of the dataset which is obtained by dividing the sum of all items present in a sample by the total number of items. It is the central point of a specific set of values and is denoted by $\bar{x}$ . The formula of mean is given as:

$M e a n (\bar{x}) = \frac{Σ x_{i}}{n}, w h e r e i = 1, 2, 3, \dots$

The median is the middle most number of the dataset when the data is sorted in an ascending order. The median for even number of datasets like 4, 10, 16, 24, etc. is the mean of two terms and the formula is given as,

$M e d i a n (\tilde{x}) = \frac{{(\frac{n}{2})}^{t h} t e r m + {(\frac{n}{2} + 1)}^{t h} t e r m}{2}$