Experiment 7 - Problems1. Find the matrix is upper-triangular or not2. Find the element's location(row,col) in the matrix3. Find the sum of all rows and average of all the columns of the matrix4. Find the greatest element in each row and smallest element in each column5. Create nested list of mobile phone specification details of 10-15 products. (Brand, Model name, RAM, Storage, Front camera, back camera, price)a. Display mobile phone price details alone of a given model nameb. Display all the brand names alone in alphabetical orderc. Find the highest resolution front camera among all the mobile phonesd. Display the mobile phone details greater than the given RAM valuee. Display the mobile phone details of the given brand with a sorted price order

One hundred forty students participated in a survey, ranking their preferences among the three models of a cellular phone. They place the number 1 for their most preferred unit and 3 for their least preferred unit. Results of the survey are given below. a.what is the first place votes of unit A, B and C(d, e, f)? b. what is the most preferrred cellular unit using Plurality MethodlBlank 1 Hare Method Blank 2 Borda Count Method Blank 3 Cellular phone unit Ranking First place votes A 1 2 1 3 d. Blank 4 B 2 1 3 2 e. Blank 5 C 3 3 2 1 f. Blank 6 Number of respondents 30 48 25 37 140

Tom's Electronics offers five models of cell phones (A,  B,  C,  D,  and E).Yesterday they sold 24 cell phones.(a)The models that were sold appear below.Complete the frequency distribution for the data.ModelD B E D B A C EE C A E A E B CA C C B D C A DModel FrequencyA B C D E

Problems with the matrix approaches

A shopkeeper sells a phone X on 20% profit. What is the Cost Price of phone X?Statement A. Average of all the phones sold by shopkeeper is 225.Statement B. Selling Price of Phone X is Rs. 14400.a.if both statements A and B are neededb.if either of statement A or statement B alone is sufficient.c.if statement B alone is sufficient but statement A alone is not sufficientd.if both of them together are not sufficiente.if statement A alone is sufficient but B alone is not sufficient

The following table shows actual and projected worldwide annual sales and average selling prices of a certain type of smartphone in 2020 and 2024.Year 2020 2024Selling Price ($) 550 350Sales (millions) 210 770(a)Use the data to obtain a linear demand function for this type of cell phone. (Let p be the price, and let q be the demand).q(p) = Use your demand equation to predict sales (in millions) if the price is lowered to $300. million phones(b)Fill in the blank.For every $1 increase in price, sales of this type of cell phone decrease by million units.