Question

Use the table to answer the question.

The frequency of sunny and cloudy days during a 90-day period is shown in the table by warm and cold temperatures.

Cloudy. Sunny. Totals
Cold. 40. 5. ?
Warm. 10. 35. ?
Totals. ? ? ?

María recorded the weather over the last 90 days. How would you fill in the last 90 days. How would you fill in the totals in the two-way table?

Answer 1

To fill in the totals in the two-way table, we first need to find the total number of days for each category.

1. **First, let's summarize the data provided:**
- For cold temperatures:
- Cloudy days: 40
- Sunny days: 5
- For warm temperatures:
- Cloudy days: 10
- Sunny days: 35

2. **Calculate the totals for each row:**
- Total for cold temperatures = Cloudy + Sunny = 40 + 5 = 45
- Total for warm temperatures = Cloudy + Sunny = 10 + 35 = 45

3. **Calculate the overall totals for each column:**
- Total cloudy days = Cold + Warm = 40 + 10 = 50
- Total sunny days = Cold + Warm = 5 + 35 = 40

4. **Finally, calculate the grand total, which should equal 90 (the total given):**
- Total = Total cloudy + Total sunny = 50 + 40 = 90

5. **Now we can fill in the table:**

```
Cloudy Sunny Totals
Cold 40 5 45
Warm 10 35 45
Totals 50 40 90
```

So, the complete table is:

```
Cloudy Sunny Totals
Cold 40 5 45
Warm 10 35 45
Totals 50 40 90
```