photo of the Tokyo Tower was taken in the day or in the

night, based on the mean of the grayscale values.

A visual representation of results from testing this

model on $15$ photos with the tag 'Tokyo Tower' is

shown below. Each of the photos were sourced from

the website Unsplash and were labelled as actually

being taken in the day or the night.

Use the plot above to complete the blanks in the

statements below. Be careful to not type any blank

spaces, to type the names of the variables and$/$or

levels exactly as they are given in the visualisation or

instruction, and to give any percentages rounded to

one decimal place $($e$.$g$.25\mathrm{.}5\%$ or $32\mathrm{.}0\%).$

The decision rule shown above $($which may not be a

good$/$sensible one$)$ can be described as:

If

is less than

classify the photo as

$,$ else classify the

photo as

The PCC for the classification model is

$\%$

The baseline model for this data would be to always

classify the photo as

and the

baseline model would have a PCC of