Some style guides insist that because "data" comes from the Latin plural of "datum", we are therefore required to treat the word "data" as plural, and we should write things like "These data are".
I disagree, and consider it completely appropriate to treat "data" as a "mass noun", like "milk" or "mud" or "information". The IEEE agrees that this is permitted, and defers to author preference in their published materials.
My main reason is a simple one: the word "datum" is not used in everyday English, nor is it used in statistics or computing science. It is an obscure word almost never encountered, even in professional or academic contexts, and it thus seems a little strange or perverse to insist that "data" is "really" the plural of "datum".
Moreover, the word "agenda" comes from a Latin plural whose corresponding singular noun, "agendum", is virtually never encountered in English. Nobody objects to the linguistic reality that in contemporary English, "agenda" is a singular noun.
Data is stuff. Data is information. I hope this data convinces you. Live with it.