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> Computes the skewness of a sequence.

# skewPop

<h2 id="skewPop">
  skewPop
</h2>

Introduced in: v20.1.0

Computes the [skewness](https://en.wikipedia.org/wiki/Skewness) of a sequence.

**Syntax**

```sql theme={null}
skewPop(expr)
```

**Arguments**

* `expr` — An expression returning a number. [`Expression`](/reference/data-types/special-data-types/expression)

**Returned value**

Returns the skewness of the given distribution. [`Float64`](/reference/data-types/float)

**Examples**

**Symmetric distribution**

```sql title=Query theme={null}
SELECT skewPop(number) FROM numbers(100);
```

```response title=Response theme={null}
┌─skewPop(number)─┐
│               0 │
└─────────────────┘
```

**Right-skewed distribution**

```sql title=Query theme={null}
SELECT skewPop(x) FROM (SELECT pow(number, 2) AS x FROM numbers(10));
```

```response title=Response theme={null}
┌─────────skewPop(x)─┐
│ 0.6735701055423582 │
└────────────────────┘
```