Ex 3.1, 5 Following table shows the points of each player scored in four games: Now answer the following questions: (i) Find the mean to determine Aβs average number of points scored per game. Average points of A = (πππ‘ππ πππππ‘π ππ π΄ ππ πππ πππππ )/(ππ’ππππ ππ πππππ π΄ ππππ¦ππ)
= (14 + 16 + 10 + 10)/4
= 50/4
= 25/2
= 12.5
Ex 3.1, 5 Following table shows the points of each player scored in four games: Now answer the following questions: (ii) To find the mean number of points per game for C, would you divide the total points by 3 or by 4? Why?
Mean points of C = (πππ‘ππ πππππ‘π ππ πΆ ππ πππ πππππ )/(ππ’ππππ ππ πππππ πΆ ππππ¦ππ)
Number of games C played = 3
So, we divide the total by 3
Letβs also find the mean of C
Mean points of C = (πππ‘ππ πππππ‘π ππ πΆ ππ πππ πππππ )/(ππ’ππππ ππ πππππ πΆ ππππ¦ππ)
= (8 + 11 + 13)/3
= 32/3
= 10.66..
Ex 3.1, 5 Following table shows the points of each player scored in four games: Now answer the following questions: (iii) B played in all the four games. How would you find the mean?Mean = (πππ‘ππ πππππ‘π ππ π΅)/(ππ’ππππ ππ πππππ π΅ ππππ¦ππ)
= (0 + 8 + 6 + 4)/4
= 18/4
= 4.5
Ex 3.1, 5 Following table shows the points of each player scored in four games: Now answer the following questions: (iv) Who is the best performer? Mean of A = 12.5
Mean of B = 4.5
Mean of C = 10.66
Since mean of A is highest,
A is the best performer

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Davneet Singh

Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.