December 2019

QUESTION 4 The weight loss recorded by 60 MaXZ Gymnasium male customers in January 2019 are recorded as follows. Weiht loss k a) Calculate the mean and standard deviation for the above data. (5 marks) b) Construct a 'Iess than' ogive to represent the above data. (3 marks) c) Using the ogive, nd i) the value of X if 75% of the customers loss their weight more than 'X' kg. (2 marks) ii) the number of customers who have loss their weight less than 6 kg. (2 marks) d) Given that the mean and standard deviation of the weight loss by female customers in January 2019 were 6 and 1.5 respectively. Determine which gender has a more consistent distribution