Brett weighed 72 kilograms before signing up for football. after changing his diet and lifting weights almost daily, he increased his weight by half his starting weight. how much does he weigh now? a) 98 kg b) 108 kg c) 126 kg d) 144 kg

Abby is collecting rainfall data. she finds that one value of the data set is a high-value outlier. which statement must be true? abby will use a different formula for calculating the standard deviation. the outlier will increase the standard deviation of the data set. the spread of the graph of the data will not change. abby will not use the mean when calculating the standard deviation.