Answer: 279
Step-by-step explanation:
In this case, the stem and leaf plot breaks the data values up by tens and ones. Tens (1, 2, 3, 4, 5 & 6) are on the left side of the divider with ones on the right. To find the missing values, we must find the one value of the numbers given in the 60s. This gives us 62, 67, and 69.