Answer:
The program to this question can be given as:
Program:
import math #import packages
import sys
number = [3, 6, 7, 2, 8, 9, 2, 3, 7, 4, 5, 9, 2, 1, 6, 9, 6] #define list
n = len(number) # taking length of list
print("Sample Data: ",number) #print list
#find Mean
print("Mean is: ") #message
add = sum(number) # addition of numbers.
mean = add / n #add divide by total list number.
print(str(mean)) #print mean
number.sort() #short list by using sort function
#find Median
print("Median is: ")
if n % 2 == 0: #conditional statement.
median1 = number[n//2]
median2 = number[n//2 - 1]
median = (median1 + median2)/2
else:
median = number[n//2]
print(str(median)) #print median
#find Standard deviation.
print("Standard Deviation :")
def SD(number): #define function SD
if n <= 1: #check condition
return 0.0 #return value.
mean,SD = average(number), 0.0
# find Standard deviation(SD).
for j in number:
SD =SD+(float(j)-mean)**2
#calculate Standard deviation holing in variable SD
SD =math.sqrt((SD)/float(n-1))#using math sqrt function.
return SD #return value.
def average(av): #define function average
n,mean =len(av), 0.0
if n <= 1:
return av[0] #return value.
# calculate average
for I in av:
mean +=float(i)
mean /= float(n)
return mean #return value.
print(SD(number)) #print value
Output:
Sample Data: [3, 6, 7, 2, 8, 9, 2, 3, 7, 4, 5, 9, 2, 1, 6, 9, 6]
Mean is:
5.235294117647059
Median is:
6
Standard Deviation :
2.140859045465338
Explanation:
In the above python program first, we import packages to perform maths and other functions. Then we declare the list that is number in the list the elements are given in the question. Then we declare variable n in this variable we take the number of elements present in the list and print the list first. In the list, we perform three operations that can be given as:
Mean:
In the mean operation firstly we define the variable add in this variable we add all elements of the list by using the math sum function then we divide the number by number of elements present in the list. and sore the value in the mean variable and print it.
Median:
In the median section firstly we sort the list by using the sort function. Then we use the conditional statements for calculating median. In the if block first we modules the number by 2 if it gives 0. it calculates first and second median the add-in median .else it will print that number.
Standard Deviation:
In the standard deviation part first, we define two functions that is SD() function and average().In the SD() function we pass the list as the parameter. In this function we use the conditional statement in the if block we call the average() function and use for loop for return all values. In the average() function we calculate the average of the all number and return value. At last, we print all values.
