Learn English – Synonym for statistical meaning of “mode”

From the Wikipedia article on Mode:

In statistics, the mode is the value that occurs most frequently in a data set or a probability distribution. In some fields, notably education, sample data are often called scores, and the sample mode is known as the modal score.

As an alternative to never mind (which, by the way, I’ve never seen written as one word), you could use let alone:

In chapter 7, it was found that PV installers do not interact frequently with geographic data within their assessment, let alone with 3D geographic data.

Note the following additional suggestions:

1. In rather than From. You could say: Recall, from chapter 7. But it was found in chapter 7 that such-and-such.
2. A comma after assessment, to separate the subsequent phrase, which adds a further thought to the sentence.
3. Repetition of with before 3D ... data. Otherwise, a reader unfamiliar with this topic (e.g., me) might (and indeed did) think that the missing preposition is the more nearby within, which then requires some mental back-pedalling.