Table 2.18 contains the standard weight classifications based on body mass index

(BMI) values. Assuming that BMI is approximately normally distributed, determine the ???? score corresponding to the cutoff for the

(a) underweight classification.

(b) healthy classification.

(c) at-risk-of-overweight classification.

(d) overweight classification.

TABLE 2.18 The Standard Weight Classifications Based on BMI Scores Weight Classification BMI Percentile Range Underweight Healthy weight At risk of overweight Overweight Less than 5th percentile Between 5th and 85th percentiles Between 85th and 95th percentiles Greater than the 95th percentile