To fill in the missing values in the two-way frequency table, we can use the totals provided.
Given:
- Totals for each category:
- Total for Salty snacks = 43 (from Third Graders) + (missing value for Fourth Graders)
- Total for Sweet snacks = (missing value for Third Graders) + 42 (from Fourth Graders) = 57
- Overall Total for Third Graders = 50
- Overall Total for Fourth Graders = 50
- Grand Total = 100
Let's fill in the table step by step:
-
Salty Snacks:
- Total Salty = 35 + (Fourth Graders)
- We know the Total for Salty is 43.
- Thus, 35 + (Fourth Graders) = 43
- Solving this gives: \[ \text{Fourth Graders (Salty)} = 43 - 35 = 8 \]
-
Sweet Snacks:
- Total Sweet = (Third Graders) + 42
- We know the Total for Sweet is 57.
- Thus, (Third Graders) + 42 = 57
- Solving this gives: \[ \text{Third Graders (Sweet)} = 57 - 42 = 15 \]
Let's compile the results:
Now we can fill in the table:
| Favorite Snack | Third Graders | Fourth Graders | Total | |----------------|----------------|-----------------|-------| | Salty | 35 | 8 | 43 | | Sweet | 15 | 42 | 57 | | Total | 50 | 50 | 100 |
Final Missing Values:
- The missing value for Fourth Graders (Salty) is 8.
- The missing value for Third Graders (Sweet) is 15.