how do i do a custom function called BMI which takes height and weight variables as input variables and calculate a BMI index as an output and put this function into Work.Functions.Conversions. Calculate the BMI index for the following dataset then print only the BMI indices.

Height	Weight
1.60	42
1.80	70

Use the following formula for BMI:

BMI=weight/(height*height);

to Complete the code, according to the below table with the title:

Countries by Region and Population Group 50 40 30 Frequency 20 10 Africa Asia Australia/Pacific Europe North America South America Region PopGroup 0 to = 100M