For example, according to "Big class.jMP"
1. First, categorize by age.
2. Determine the minimum "weight" >90 for each age.
3. Figure out the number of age categories that meet the second condition.
So it turns out the number of ages is 3.
How can I use JSL to solve it quickly?Thanks!
![2020-07-22_13-32.png 2020-07-22_13-32.png](https://community.jmp.com/t5/image/serverpage/image-id/25652iA073348D90A4087E/image-size/large?v=v2&px=999)