1,900,000,000 in scientific notion is
1.9 ×10^9
Answer:
1. A. 11/36 inches
2. D. 1 3/8 inches
Step-by-step explanation:
1200 is the correct answer
The correct option is : 2
<u><em>Explanation</em></u>
For finding the mean number of working TV sets, we need to <u>divide the total number of TV sets by the total frequency</u>.
Now for finding the total number of TV sets, first we will <u>multiply each number of TV sets by it's frequency and then sum up all the results</u>.
So, the total number of TV sets

and total frequency 
Thus, the mean number of working TV sets 
Step-by-step explanation:
answer is in the image above