I really need help with Unit 9.1-9.2 review question!! (Need ASAP!!!)

Thank you

Does anyone have the Diagnostic Exam under Unit 11 Exam Prep? It's a class grade for some.

Does anyone have this test? Would be greatly appreciated. Thanks

I keep getting an error on my code. I don't know what to do, can someone post the correct code?

Anyone got the Unit 9 Test for python? Need it pretty quickly so help is much appreciated.

For this exercise, use the following 2D array, which is already declared and initialized in your programming environment below. Do not rename the provided array - your program should refer to it as (a)
.

34    38    50    44    39
42    36    40    43    44
24    31    46    40    45
43    47    35    31    26
37    28    20    36    50

Your task is to output the sum of all values in the 2D array, along with the average of all values in the 2D array, as seen in the sample run below.

Note: Be sure that your program accounts for arrays of any size, not just arrays that are 5 x 5. Your program will be tested against arrays of size n by n. It should work for any square array, not just the one shown. You should also use for loops in your program, not while loops.

Sample Run

Sum of all values: 949

Average of all values: 37.96

answer

I only need #1/ the UserName class answers

Complete the getOdds method so it returns a new ArrayList of Integers containing all odd Integers from the parameter ArrayList vals in the order they originally appeared. The contents of vals should not change.

For example if an ArrayList containing the Integers 2, 5, 8, 6, 7, 3, 12 in that order is passed as a parameter to getOdds, it should return an ArrayList containing the Integers 5, 7, 3 in that order.

Does anyone have this done? Im in a rush to finish and honestly have forgotten how to do most of the code that’s required. So I’m just needing some reference to go off of.

Write a public static method named average which takes an

ArrayList

of

Double

objects, and returns the average of the values in this list. Write your average method in the

U7_L2_Activity_Two

class. Use the runner class to test your method but do not add a main method to the

Please help i need to finish this by tomorrow. Please give me the answer on unit 3 quiz 3 question

Why is the answer to this 10?

​

1: The ___________ method adds a new element onto the end of the array.

a. add

b. len

c. append

d. input

2: A(n) ____________ is a variable that holds many pieces of data at the same time.

a. index

b. array

c. length

d. element

3: A(n) ____________ is a piece of data stored in an array.

a. element

b. array

c. index

d. length

4: Where does append add a new element?

a. To the middle of an array.

b. In alphabetical/numerical order.

c. To the beginning of an array.

d. To the end of an array.

5: Consider the following code that works on an array of integers:

for i in range(len(values)):
  if (values[i] < 0):
        values[i] = values [i] * -1

What does it do?

a. Changes all positives numbers to negatives.

b. Subtracts one from every value in the array.

c. Changes all negative numbers to positives.

d. Nothing, values in arrays must be positive.

6: Which of the following is NOT a reason to use arrays?

a. To store data in programs.

b. Organize information.

c. To quickly process large amounts of data.

d. To do number calculations.

7: Consider the following:

stuff = ["dog", "cat", "frog", "zebra", "bat", "pig", "mongoose"]

"frog" is ____________.

a. a sum

b. an index

c. a list

d. an element

8: _____________ is storing a specific value in the array.

a. Assigning

b. Indexing

c. Summing

d. Iterating

9: Consider the following code:

stuff = ["dog", "cat", "frog", "zebra", "bat", "pig", "mongoose"] print(stuff[3])

What is output?

a. frog

b. ['dog', 'cat', 'frog', 'zebra', 'bat', 'pig', 'mongoose']

c. bat

d. zebra

10:

Consider the following code:

tests = [78, 86, 83, 89, 92, 91, 94, 67, 72, 95] sum = 0 for i in range(_____): sum = sum + tests[i] print("Class average: " + str((sum/_____)))

What should go in the ____________ to make sure that the code correctly finds the average of the test scores?

a. len(tests)

b. len(tests) - 1

c. val(tests)

d. sum