Answer:
The number of single-shot espressos sold by the cafe was 49.
Step-by-step explanation:
It is provided that Addison's Cafe offers two kinds of espresso: single-shot and double-shot.
Total number of espressos sold by the cafe yesterday afternoon was,
<em>N</em> = 70
The proportion of single-shot espresso sold was, <em>p</em> = 0.70.
Let <em>X</em> = number of single-shot espressos sold.
Compute the number of single-shot espressos sold by the cafe as follows:
![E(X)=N\times p](https://tex.z-dn.net/?f=E%28X%29%3DN%5Ctimes%20p)
![=70\times 0.70\\=49](https://tex.z-dn.net/?f=%3D70%5Ctimes%200.70%5C%5C%3D49)
Thus, the number of single-shot espressos sold by the cafe was 49.