Answer Happy

Thanks to social media, the happiest creature on earth, an always smiling Australian marsupial called a quokka, has become well known. Suppose that weights of quokkas can be described by a Normal model with a mean of 6 pounds and a standard deviation of 1.8 pounds. a) How many standard deviations from the mean would a quokka weighing 4 pounds be? b) Which would be more unusual, a quokka weighing 4 pounds or one weighing 3 pounds? a) A quokka weighing 4 pounds is standard deviation(s) (Round to two decimal places as needed.) CELLE the mean.