Descriptive statistics involves tabulating, depicting and describing collections of data.是什么意思？

Descriptive statistics involves tabulating, depicting and describing collections of data.

描述统计学涉及对所收集数据的制表 、 制图和描述.

descriptive

adj. 描写的，描述的，分类的；

例句
...his descriptive way of writing.
他的描写性写作手法

statistics

n. 统计，统计学，统计法，统计资料，统计数字，“statistic”的复数；

例句
Officials admit the actual number of AIDS victims is much higher than statistics reflect.
官员们承认艾滋病患者的实际数量比统计所显示的数字要大得多。

involves

v. 表明（某人参与了罪行等）( involve的第三人称单数 )，使参与，牵涉，使专心于；

例句
Getting into the aft cabin involves a slight step down from saloon level.
去后舱需要从餐厅的位置略微往下迈一小步。

tabulating

v. 把（数字、事实）列成表( tabulate的现在分词 )，制表；

例句
...methods of collecting, tabulating and analysing numerical data...
搜集信息、列表和分析数据的各种方法

depicting

v. 描绘，描画( depict的现在分词 )，描述；

例句
Television broadcasters were warned to exercise caution over depicting scenes of violence...
电视台受到警告，要求对暴力场面的描绘采取谨慎态度。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

describing

v. 描写( describe的现在分词 )，叙述，画出（图形等），形容；

例句
She broke down describing how she was arrested for refusing a breath test...
她在叙述自己如何因为拒绝接受呼吸测试而被捕时再也控制不住情绪。

collections

n. 收集( collection的名词复数 )，收藏品，作品集，募集的款项；

例句
...the picture, furniture and porcelain collections that blend so well with the house itself.
与房间本身非常搭调的图画、家具和瓷器收藏品

of

prep. 关于，属于…的，由…制成；aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气]；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

data

n. 资料，材料，datum的复数，[计算机]数据，资料，从科学实验中提取的价

例句
McCarthy was asked to analyse the data from the first phase of trials of the vaccine...
麦卡锡被要求对第一阶段疫苗试验的数据作出分析。