Let numbers be an array defined as follows. int numbers[5][7]; Assume that the array has been filled with values. Which of the following blocks of code calculates the row totals of the 2-dim array and store them in the 1-dim array named totals? int totals[5] = {0}; for (int row = 0; row < 5; ++row) { int total = 0; for (int col = 0; col < 7; ++col) { total += numbers[row][col]; } totals[row] = total; } int totals[7] = {0}; for (int col = 0; col < 7; ++col) { int total = 0; for (int row = 0; row < 5; ++row) { total += numbers[row][col]; } totals[col] = total; None of these int totals[7] = {0}; for (int row = 0; row < 7; ++row) { int total = 0; for (int col = 0; col < 5; ++col) { total += numbers[row][col]; } totals[row] = total; } %3D

The complexity of an Array’s __str_() method is O(n). Question 15 options: False True

JAVA PROGRAM Chapter 7. PC #16. 2D Array Operations Write a program that creates a two-dimensional array initialized with test data. Use any primitive data type that you wish. The program should have the following methods: • getTotal. This method should accept a two-dimensional array as its argument and return the total of all the values in the array. • getAverage. This method should accept a two-dimensional array as its argument and return the average of all the values in the array. • getRowTotal. This method should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a row in the array. The method should return the total of the values in the specified row. • getColumnTotal. This method should accept a two-dimensional array as its first argument and an integer as its second argument. The second argument should be the subscript of a column in the array. The method should return the...

4. Array code Fill in the method below to have it create and fill in an array of 4 doubles. The first ele- ment should be set to the average of the first quarter of the array passed to data, the second element should be set to the average of the second quarter of the array, and so on. If input data is [1, 2, 3, 4, 5, 6, 7, 8] result should be [1.5, 3.5, 5.5, 7.5] public static double[] quartileAverages(int [] data) {

# Declare a named constant for array size here. MAX_AVERAGES = 8 # Declare array here. # Write a loop to get batting averages from user and assign to array. averageString = input("Enter a batting average: ") battingAverage = float(averageString) # Assign value to array. # Assign the first element in the array to be the minimum and the maximum. minAverage = averages[0] maxAverage = averages[0] # Start out your total with the value of the first element in the array. total = averages[0] # Write a loop here to access array values starting with averages[1] # Within the loop test for minimum and maximum batting averages. # Also accumulate a total of all batting averages. # Calculate the average of the 8 batting averages. # Print the batting averages stored in the averages array. # Print the maximum batting average, minimum batting average, and average batting average. This is on mindtap pyton what needs to be fix

Programming language: Processing from Java Question attached as photo Topic: Use of Patial- Full Arrays

python: numpy def purchases(transactions): """ QUESTION 7 - A high-end store is trying to evaluate the total amount that customer's spend per transaction. They want customers to spend anywhere between 130ドル and 150ドル on average. - You need to determine whether the average number spent on each transaction per month is above, between, or below the desired amount. - Transactions is a numpy array containing a date, total amount earned each month, and total number of transactions each month. - Above: month's average amount spent per transaction > 150 - Within Range: 150 >= month's average amount spent per transaction >= 130 - Below: month's average amount spent per transaction < 130 - Return a numpy array with "Above", "Within Range" and "Below" for the average amount spent per transaction per month - THIS MUST BE DONE IN ONE LINE HINT: use np.where() and convert the type of each column to float Args: transactions...

Matrix Multiplication• Write a multiplication function that accepts two 2D numpy arrays,and returns the product of the two. This function should test that thearrays are compatible (recall that the number of columns in the firstmatrix must equal the number of rows in the second matrix). Thisfunction should test the array sizes before attempting themultiplication. If the arrays are not compatible, the function shouldreturn -1. solve in python

5. Create an array that contents 10 integer elements, and let user randomly input 10 values and put into the array, Sorts array elements in ascending order, and then print out the array element.

Problem Description - JAVA PROGRAMMING Use a Two-dimensional (3x3) array to solve the following problem: Write an application that inputs nine numbers, each of which is between 1 and 10, inclusive. Display the array after the user inputs each value. Rotate/flip the array by changing places. Make the rows columns and vice versa. You have to move the elements to their new locations. Remember to validate the input and display an error message if the user inputs invalid data. Documentation and the screenshot(s) of the results. Example: 1 2 3 4 5 6 7 8 9 the result will be : 1 4 7 2 5 8 3 6 9

1- Write a user-defined function that accepts an array of integers. The function should generate the percentage each value in the array is of the total of all array values. Store the % value in another array. That array should also be declared as a formal parameter of the function. 2- In the main function, create a prompt that asks the user for inputs to the array. Ask the user to enter up to 20 values, and type -1 when done. (-1 is the sentinel value). It marks the end of the array. A user can put in any number of variables up to 20 (20 is the size of the array, it could be partially filled). 3- Display a table like the following example, showing each data value and what percentage each value is of the total of all array values. Do this by invoking the function in part 1.

part a- 2point) for 3 students find the average of a student by asking him how many grades do you have. The answer to this question, determine the size of the array(list of grades) and then ask the user to enter grades(the number of the grades is equal to the size of the array) then calculate the average for each student. Hence, you will calculate 3 averages. to calculate the average, use the array accumulator. Also when you get each grade validate it. validation for grade means that you check whether a grade is between 0 and 100. if the grade is negative or a grade is more than 100 then it is not valid and you have to ask the user to enter a grade again. Part b- 1 point) Find the maximum and minimum grades for each student. Part c- 1 point) Print the sorted list of the grades for each student. example: if grades user entered are: 60 78 98 23 45 then sorted list is:23 45 60 78 98 (Array not vector)

Question 1 Write a program that declares an array of 100 doubles. The program asks the user to enter a number N between 100, and then: initializes the first N elements of the array to random numbers between 1 and 100. calculates the average of these numbers and displays it. A final loop displays the elements of the array, each on a line, with an indication as to whether that number is lower or higher than the average. For example, if the numbers generated are 5, 28, 3, 8, 15, 7, 22, 6, 1, 4, then the program will print: Average = 9.9 5 28 3 8 15 7 22 6 1 4 11 11 11 -- 11 11 1- —— 11 lower than average higher than average lower than average lower than average higher than average lower than average higher than average lower than average lower than average lower than average