In a survey of 1,600 adults in the United States, 48% indicated that television is their primary source of news. The margin of error for the survey is `pm2.5%`. Which value is outside the interval that is likely to contains the exact percent of all adults in the United States who get the news primarily from telesion?

Options

A. `45`
B. `47`
C. `49`
D. `50`

Explanation

To solve the problem step-by-step, we will first determine the interval that likely contains the exact percentage of all adults in the United States who get their news primarily from television, based on the given data.

### Step 1: Identify the percentage of adults who indicated television as their primary source of news.
The survey indicates that 48% of the adults surveyed indicated that television is their primary source of news.

**Hint:** Look for the percentage given in the problem statement.

### Step 2: Determine the margin of error.
The margin of error provided in the survey is ±2.5%. This means we will add and subtract this value from the percentage found in Step 1.

**Hint:** Remember that the margin of error gives us a range around the percentage.

### Step 3: Calculate the lower limit of the interval.
To find the lower limit, subtract the margin of error from the percentage:
\[ \text{Lower Limit} = 48\% - 2.5\% = 45.5\% \]

**Hint:** Use subtraction to find the lower boundary of the interval.

### Step 4: Calculate the upper limit of the interval.
To find the upper limit, add the margin of error to the percentage:
\[ \text{Upper Limit} = 48\% + 2.5\% = 50.5\% \]

**Hint:** Use addition to find the upper boundary of the interval.

### Step 5: Define the interval.
The interval that is likely to contain the exact percentage of all adults in the United States who get their news primarily from television is:
\[ 45.5\% \text{ to } 50.5\% \]

**Hint:** This interval is formed by the lower and upper limits calculated in the previous steps.

### Step 6: Identify which value is outside the interval.
Now, we need to check which of the given options (45, 47, 49, or 50) falls outside the interval of 45.5% to 50.5%.

- 45% is less than 45.5% (outside the interval)
- 47% is within the interval
- 49% is within the interval
- 50% is within the interval

**Hint:** Compare each option with the interval limits to see if they fall inside or outside.

### Conclusion:
The value that is outside the interval is **45%**.

**Final Answer:** 45