What is the arithmetic mean of first 20 odd natural number?
Answer & explanation
Correct answer: option 3
Mean = \(\frac{Sum\;of\;observations}{no.\;of\;observations}\)
Sum of first 20 odd no. = 202 = 400
Mean = \(\frac{400}{20}\) = 20
What is the arithmetic mean of first 20 odd natural number?
Correct answer: option 3
Mean = \(\frac{Sum\;of\;observations}{no.\;of\;observations}\)
Sum of first 20 odd no. = 202 = 400
Mean = \(\frac{400}{20}\) = 20