A group of students was asked, "How many hours did you watch television last week?" Here are their responses.
6, 16, 5, 16, 13, 12, 20
Find the mean number of hours for these students.
If necessary, round your answer to the nearest tenth.

12.6

Step-by-step explanation:

6+16+5+16+13+12+20

=22+21+25+20

=43+45

=88

There are 7 responses.

88/7=12.6  (rounded to the nearest tenth.)

the correct answer is 45x

9×5=45 then add the x

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )