Kodewick
Start learning →
Basic←→0 / 70

Math average

#004BasicAggregates3 min

The teacher wants to know how the math test went. From the scores table, work out the average of the scores whose subject is 'math', rounded to 1 decimal place with ROUND(…, 1).

The tables
students
idnameclassagecity
1Amy1A12Leeds
2Ben1A13York
3Cara1B12NULL
4Dan1B14Leeds
5Eva1A12Hull
6Finn1C13NULL
7Gus1C12York
7 rows
scores
idstudent_idsubjectscore
11math92
21art78
32math65
42art88
53math74
64math55
74art90
85math81
95artNULL
107math99
10 rows
query.sql
-- your code here: keep only the math rows, then AVG for the average and ROUND to 1 place
SELECT score
FROM scores;
Ctrl + Enter runs too
Result

Run shows what your query gives. When it looks right, Submit.