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- The set of all non-negative integers x less than 16 such that x2 is an even integer can be described as the set: (Note: The required set must include as elements all non-negative integers x such that all the requirements for the set are met.) a. {x| x ∈ Z≥, x < 16, x2 = 2k for some k ∈ Z} b. {x| x ∈ Z≥, x < 16, x2 = 2k for some k ∈ Z+} c. {0, 2, 4, 16, 36, 64, 100, 144, 196} d. {0, 2, 4}Q. Given a 2d grid map of '1's (land) and '0's (water),count the number of islands.An island is surrounded by water and is formed byconnecting adjacent lands horizontally or vertically.You may assume all four edges of the grid are all surrounded by water. Example 1: 11110110101100000000Answer: 1 Example 2: 11000110000010000011Answer: 3""" def num_islands(grid): count = 0 for i in range(len(grid)): for j, col in enumerate(grid[i]): if col == 1: dfs(grid, i, j) count += 1 Please code it. .BEFPULSEMIN 70 75 80 82 65 75 74 73 65 67 80 72 69 81 82 83 68 73 74 76 81 64 85 65 66 62 81 82 74 71 72 76 79 80 84 85 73 68 68 67 68 75 77 72 76 78 82 67 80 76 74 77 73 74 72 76 74 81 75 70 TATISTICSSTUDENTSSURVEYFORR contains the column BEFPULSEMIN (a numerical variable that measures student pulses before completing an online survey). For education purposes, consider this dataset to be a sample of size 60 taken from a much wider population for statistics students. Use R to find a 99% confidence interval for the mean of the population. Choose the most correct (closest) statement below. a. Your confidence interval is (72.38912, 76.41088) beats per minute and it is narrower than a 90% confidence interval created from this data. b. Your confidence interval is (72.88831, 75.91169) beats per minute and is narrower than a 90% confidence interval. c. Your…
- True or false set{(x,x2):x∈Z}canbeseeasafunctionZ→Q. set{(x2,x):x∈Z}canbeseeasafunctionZ→Q.TODO 3: Invoke the gaussian() function, which accepts x_values, mu, and sig. Save the results in the variable y_values. # TODO 3 y_values = display(y_values) todo_check([ (y_values.shape == (120,),'y_values does not have the correct shape of (120,)'), (np.all(np.isclose(y_values,…PYTHON DATASET given x = np.array([i*np.pi/180 for i in range(60,300,4)]) np.random.seed(10) #Setting seed for reproducibility y = 4*x + 7 + np.random.normal(0,3,len(x)) Write a function inspired by sklearn’s polynomial preprocessing: (https://scikit-learn.org/stable/modules/generated/sklearn.preprocessing.PolynomialFeatures.html) your function should have: degree and include bias parameters only. For this assignment, assume that input is a 1-dimensional numpy array. For example, if an input sample is np.array([a, b]), the degree-2 polynomial features with "include_bias=True" are [1, a, b, a2, b2].
- GIVE authentic Answer: WEB TECHNOLOGIES Consider the Marks against each students in different subjects Student Names Database Tot Marks : 60 PF Tot Marks : 80 Marketing Tot Marks : 60 Irfan 56 45 59 Salma 67 56 52 Inayat 54 40 48 Basharat 56 53 51 Store these details in the Multidimensional Associative Array. Display the output as shown here S# Student Name Obt: Marks %age= (Obt:Marks / 200) * 100.0 Grade 1 Iranf 160 80 B 2 Salma 175 87 A 3 Inayat 142 71 C 4 Basharat 160 80 B A >80% B (71-80%) C (61-70%) D(51-60%) F<50% Grade Summary Total A Grade = 1 Total B Grade = 2 Total C Grade = 1 Total D Grade = 0 Total F Grade = 0 Add complete set of Screen Shots against all the steps…Q1. Srikanth is a school student. He studies in class 8th. One day his Math’s teacher came to the class and told them that he is going to start a new chapter “Measurement”. In order to give them a demo of that chapter, he told the students to find the volume of the class room using Volume( ). Input Constraint 15<=Length<=25 10<=Breadth<=20 20<=Height<=30 its the question to be solved in Dev C++A basic wooden railway set contains the pieces shown in figure below. It identifies the quantityof each type of piece denoted by ‘x’. Each piece is not uniquely identified by a primary keyvalue only labeled by type. i.e., Input information only states quantity of types such as twelvestraight pieces, two branch pieces, two merge pieces, and sixteen curve pieces. Pieces connect the knob to opening, with subtend curves extending the arc from start to end by45 degrees, and the pieces can be flipped over for track direction. The task is to connect these pieces into a railway that has no overlapping tracks and no looseends where a train could run off onto the floor. Question: Suppose that the pieces fit together exactly with no slack. Give a precise formulation of thetask as a search problem. Write a Java algorithm to assemble optimally solving the problem.
- (Use Dev C++) The combination of n objects k at a time can be defined as shown below. The equation tells us how many combination of n objects can be formed k elements at a time. P(n, k) = factorial (n) / (factorial (n − k) * factorial (k))A magic square is a square array of non-negative integers where the sums of the numbers on each row,each column, and both main diagonals are the same. An N × N occult square is a magic square with Nrows and N columns with additional constraints:• The integers in the square are between 0 and N, inclusive.• For all 1 ≤ i ≤ N, the number i appears at most i times in the square.• There are at least two distinct positive integers in the square.For example, the following is a 5 × 5 occult square, where the sums of the numbers on each row, eachcolumn, and both main diagonals are 7:0 0 0 3 42 4 0 0 10 0 3 4 05 0 0 0 20 3 4 0 0For a given prime number P, you are asked to construct a P × P occult square, or determine whether nosuch occult square exists.InputInput contains a prime number: P (2 ≤ P ≤ 1000) representing the number of rows and columns in theoccult square.OutputIf there is no P × P occult square, simply output -1 in a line. Otherwise, output P lines, each contains Pintegers…Using Java & Apache NetBeans Provide screenshots of the OUTPUT! Create a two-dimensional array of type double to contain the three different SD Marks (JD521, PRG521, and IP521) for six different students. A single array of type String must be used to store the student names (Maxwell, Carl, Gerhard, Paul, James, and Cena). Allow a user to enter in a number, ranging from 1 to 6, which will represent the student position in the table MCSD max and present the marks for each respecting module. The program can only stop when the user enter a number greater than 6. Printout the student name including the JD521, PRG521, and IP521 max, the total of marks and the average of all marks. Use a condition statement to decide that the student has passed or not (Pass rate is 70).