【分类】：聚合函数、count、avg

分析思路

select 查询结果 [count(性别) as male_num,avg(gpa) as avg_gpa]
from 从哪张表中查找数据 [user_profile]
where 查询条件 [男生]

求解代码

select 
    count(gender) as male_num,
    avg(gpa) as avg_gpa
from user_profile
where gender = 'male'