2.The number of tickets sold to a play for each showing is 78, 84, 87, 80, 91, 95, and 80.
Find the five-number summary for the data.

The maximum is :

Now we can calculate the median since the sample size os n =7 the median would be the middle value at the position 4 from the dataset ordered and we got:

Now we can find the quartile 1 we analyze the first 4 values  78, 80,80, 84 and the first quartile would be:

Now we can find the quartile 3 we analyze the last 4 values  84,87, 91, 95 and the third quartile would be:

And finally the 5 number summary would be:

Step-by-step explanation:

We have the following data given:

78, 84, 87, 80, 91, 95, and 80.

The first step is order the dataset on increasing way and we got:

78, 80,80, 84,87, 91, 95

We can begin finding the minimum value and for this case is:

The maximum is :

Now we can calculate the median since the sample size os n =7 the median would be the middle value at the position 4 from the dataset ordered and we got:

Now we can find the quartile 1 we analyze the first 4 values  78, 80,80, 84 and the first quartile would be:

Now we can find the quartile 3 we analyze the last 4 values  84,87, 91, 95 and the third quartile would be:

And finally the 5 number summary would be:

a right triangle. and in the future use this desmos.com to you