Question

here is a list of students birthdays (day of the month as a number). 3 6 6 9 10 12 12 15 18 19 19 19 21 23 23 23 27 27 30 30 31 31. which number belongs in the blank below? students birthdays
o 3, 6, 6, 9
1 0, 2, 2, 5, 8, 9, 9, 9
2 1, 3, _, 3, 7, 7
3 0, 0, 1, 1 key 2|3 means 23. 1 2 3 4

Explanation:

Step1: Understand the stem - and - leaf plot

The stem - and - leaf plot shows the students' birthdays. The key indicates that a number like 2|3 means 23. The numbers in the dataset are the days of the month.

Step2: Identify the missing number

The numbers in the dataset are 3, 6, 6, 9, 10, 12, 12, 15, 18, 19, 19, 19, 21, 23, 23, 23, 27, 30, 30, 31, 31. Looking at the stem - and - leaf plot for the row with stem 2, we have 21, 23, _, 23, 27, 27. The missing number from the dataset for this row is 21. In the stem - and - leaf plot format, for the digit in the leaf position corresponding to 21, it is 1.

Answer:

1