Variance, std where is now ? in 1.5.1 verision?

General Usage
1

Where in 1.5.1 versio is variance , std ?

 Version 1.5.1 (2020-08-25)

julia> a = rand(10)
10-element Array{Float64,1}:
 0.31820694853200404
 0.19056834277810242
 0.7491023037833544
 0.013571726580821286
 0.8919727769294576
 0.07944328102630704
 0.4813844063048547
 0.9577081770822704
 0.30967203586695313
 0.7091782785326979

julia> std(a)
ERROR: UndefVarError: std not defined
Stacktrace:
 [1] top-level scope at REPL[20]:1

julia> var(a)
ERROR: UndefVarError: var not defined
Stacktrace:
 [1] top-level scope at REPL[21]:1

julia> using StatsBase

julia> var(a)
ERROR: UndefVarError: var not defined
Stacktrace:
 [1] top-level scope at REPL[23]:1

Paul

2 
using Statistics
std(a)
5 Likes
3

Something that can be helpful for this:

julia> apropos("standard deviation")
Random.randn!
Base.randn
Statistics.stdm
Statistics.std
5 Likes