Please answer both parts. I will upvote

2. A rugby club coach uses club records to take a random sample of 15 players from 1990 and an independent random sample of 15 players from 2010. The body weight of each player was recorded to the nearest kg and the results from 2010 are summarised in the table below. Body weight 75-79 (kg) 80-84 85-89 90 94 95-99 100-104 105-109 Number of Players 2 2 4 2 (2010) (a) Find the estimated values in kg of the summary statistics a, b and c in the table below. Estimate in 1990 Estimate in 2010 Mean 83.0 a Median 82.0 b Variance 44.0 C Give your answers to 3 significant figures. (6) The rugby coach claims that players' body weight increased between 1990 and 2010. (b) Using the table in part (a), comment on the rugby coach's claim. (2)