One thing to note when constructing a box-and-whisker plot, you have to find the inter quartile values. First, arrange the data set from least to greatest. Then, find the median denoted as Q₂. To the left of Q₂, find the median of that specific data set, denotes as Q₁. Similarly, do the procedure to the left of Q₂ denoted as Q₃. The lines of the box signify Q₁, Q₂ and Q₃. The 'whiskers' signify the least and greatest value. From the choices, the answer is B. Let me show you the solution:
Arranging the data:
| 22 25 29 30 | 32 | 34 36 36 39 |
Q₂ = 32
Q₁ = (25+29)/2 = 27
Q₃ = (36+36)/2 = 36
Left whisker: 22
Right whisker: 39
