chapter 7 programming

how do you find the lowest and highest values in a list?

you can use the build-in max and min functions

what will the following code display? numbers = list(range(1, 10, 2)) for n in numbers, print(n)

1 3 5 7 9

what will the following code display? numbers = [1, 2, 3, 4, 5], print(numbers([-2]))

4

assume the following statement appears in a program: names = [ ] which of the following statements would you use to add the string 'wendy' to the list at index 0? why would you select this statement instead of others? a. names [0]='wendy' b. names.append('wendy')

B. bc the element 0 doesn't exist so an error will occur

what will the following code display? numbers = [1, 2, 3, 4, 5] my_list = numbers[ :1] print(my_list)

[ 1 ]

what will the following code display? numbers = list(range(3)) print (numbers)

[0, 1, 2]

what will the following code display? numbers = [1, 2, 3, 4, 5] my_list = numbers[ : ] print(my_list)

[1, 2, 3, 4, 5]

what will the following code display? numbers1=[1, 2, 3] numbers2= [10, 20, 30] numbers2 += numbers1 print(numbers1) print(numbers2)

[1, 2, 3] [10, 20, 30, 1, 2, 3]

what will the following code display? numbers1=[1, 2, 3] numbers2= [10, 20, 30] numbers3 = numbers1 + numbers2 print(numbers1) print(numbers2), print(numbers3)

[1, 2, 3] [10, 20, 30] [1, 2, 3, 10, 20, 30]

what will the following code display? numbers = [ 1, 2, 3, 4, 5] numbers[2]=99 print(numbers)

[1, 2, 99, 4, 5]

what will the following code display? numbers = [10]*5 print(numbers)

[10, 10, 10, 10, 10,]

what will the following code display? numbers = [1, 2, 3, 4, 5] my_list = numbers[1: ] print(my_list)

[2, 3]

what will the following code display? numbers = [1, 2, 3, 4, 5] my_list = numbers[1:3] print(my_list)

[2, 3]

what will the following code display? numbers = [1, 2, 3, 4, 5] my_list = numbers[ -3 : ] print(my_list)

[3, 4, 5]

describe the insert method

inserts ab item into a list at a specific index

what will the following code display? names = [ 'Jim', 'Jill', 'John', 'Jasmine'] if 'jasmine' not in names print ('Cant find jasmine') else: print ('Jasmines family') print(names)

jasmines family: [ 'Jim', 'Jill', 'John', 'Jasmine']

describe the reverse method

reverses the order of the items in the list

describe the index method

searches for an item in the list and returns the index of the frist element containing that item

describe the sort method

sorts the items in the list to appear in ascending order

what is the difference between calling a lists remove method and using the del statement to remove an element?

the remove function searches for and removes an element containing a specific value. The del statement removes an element at a specific index

how do you find the number of elements in a list?

use the build-in len function