Let's solve each problem step by step based on the two-way tables provided in the image. I'll go through each question and explain how to find the answer.
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Problem 1: Wildlife Observed in a Garden
Two-Way Table:
| | Wings | No Wings | TOTAL |
|----------------|-------|----------|-------|
| Less than 1cm tail | 1 | 4 | 5 |
| 1cm to 5cm tail | 2 | 3 | 5 |
| More than 5cm tail | 5 | 4 | 9 |
|
TOTAL | 8 | 11 |
19 |
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Question: What was the total amount of wildlife observed in the garden?
✔ Answer: The total number of wildlife observed is found in the
bottom-right corner of the table (the grand total), which is
19.
>
✔ Explanation: In a two-way table, the "TOTAL" row and column give sums of rows and columns. The overall total is at the intersection of the last row and last column →
19.
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Problem 2: Snacks Sold in a Local Shop
Two-Way Table:
| | Hot | Cold | TOTAL |
|---------------|-----|------|-------|
| Sweet | 8 | 14 | 22 |
| Savoury | 10 | 14 | 24 |
|
TOTAL | 18 | 28 |
46 |
####
Question: How many hot, savoury snacks were sold in the local shop?
✔ Answer: Look at the cell where "Hot" and "Savoury" intersect →
10
>
✔ Explanation: This is a direct read from the table. The value in the "Hot" column and "Savoury" row is
10.
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Problem 3: Animals at a Zoo
Two-Way Table:
| | Mammal | Non-Mammal | TOTAL |
|--------------|--------|------------|-------|
| Predator | 18 | 15 | 33 |
| Non-Predator | 26 | 22 | 48 |
|
TOTAL | 44 | 37 |
81 |
####
Question: How many animals are non-predators?
✔ Answer: Look at the "Non-Predator" row →
48
>
✔ Explanation: The total number of non-predator animals is given in the "TOTAL" column for that row →
48.
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Summary of Answers:
1.
Total wildlife observed in the garden: 19
2.
Hot, savoury snacks sold: 10
3.
Number of non-predator animals: 48
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Let me know if you'd like help interpreting any other parts or visualizing these data!
Parent Tip: Review the logic above to help your child master the concept of probability two way tables worksheet.
