The table shows the proportion of US e-commerce revenue for 2016-2018 for each day of Thanksgiving weekend.

\begin{tabular}{|l|c|c|c|c|c|c|}
\hline
& \multicolumn{6}{|c|}{When Shopping Occurred} \\
\hline
Year & Thanksgiving & \begin{tabular}{c}
Black \\ Friday
\end{tabular} & Saturday & Sunday & \begin{tabular}{c}
Cyber \\ Monday
\end{tabular} & Total \\
\hline
2016 & 0.14 & 0.25 & 0.13 & 0.15 & 0.33 & 1.00 \\
\hline
2017 & 0.15 & 0.26 & 0.12 & 0.14 & 0.34 & 1.00 \\
\hline
2018 & 0.14 & 0.25 & 0.13 & 0.14 & 0.33 & 1.00 \\
\hline
\end{tabular}

The greatest proportion of 2018 e-commerce revenue came on Cyber Monday, contributing one-third of the total 2018 e-commerce revenue. This statement is [tex]$\square$[/tex]

Of 2016's e-commerce revenue, [tex]$\$[/tex] 25[tex]$ billion came on Black Friday. This statement is $[/tex]\square$



Answer :

Let's analyze the given statements about e-commerce revenue proportions for the years 2016, 2017, and 2018.

### Statement 1:
"The greatest proportion of 2018 e-commerce revenue came on Cyber Monday, contributing one-third of the total 2018 e-commerce revenue. This statement is [tex]$\square$[/tex]"

We need to determine if Cyber Monday contributed the greatest proportion of the total e-commerce revenue in 2018 and whether it was one-third (0.33) of the total.

From the table:
- Cyber Monday 2018 proportion: 0.33
- Comparing with other days in 2018:
- Thanksgiving: 0.14
- Black Friday: 0.25
- Saturday: 0.13
- Sunday: 0.14

While Cyber Monday did contribute a significant proportion of the revenue, it is not the greatest proportion because it does not uniquely exceed others in all cases.

Therefore, the statement is False.

### Statement 2:
"Of 2016's e-commerce revenue, [tex]$25 billion came on Black Friday." We know from the table that the revenue proportion for Black Friday in 2016 is 0.25 (or 25%). To find the total 2016 e-commerce revenue given Black Friday's $[/tex]25 billion contribution, we can use the proportion:
[tex]\[ \text{Total revenue} = \frac{\text{Black Friday revenue}}{\text{Black Friday proportion}} = \frac{25 \text{ billion}}{0.25} = 100 \text{ billion} \][/tex]

Thus, the total e-commerce revenue for 2016 would be $100 billion.

This calculation confirms that the statement is accurate.

Therefore, the statement is True.