5. (8 points) The following figure shows birth weight, in grams, of infants who were delivered full-term classified by their mother's weight gain during pregnancy: 75+pounds 50-74 pounds Less than 50 pounds 2500 2750 3000 3250 3500 3750 4000 4250 4500 Birth Weight (grams) What is the median birth weight for mothers who gained 50 to 74 pounds? b. What is the interquartile range for mothers who gained 75 pounds or more? c. Are there any outliers in birth weight among mothers who gained less than 50 pounds? d. What are the best measures of central tendency birth weight and variability (i.e., dispersion) in birth weights among mothers who gained less than 50 pounds