Answer: $630
Step-by-step explanation:
$2,560 - $1,930 = $630
Step-by-step explanation:
220000/100=2200*0.49=789
All our answers lie in the above statement.
Confidence Level:
The creator claims that 9 out 10 students will have the average score in the said range. Or in other words we can say that the creator is 90% confident about the result of the field test. So the confidence level is 90%.
Margin of Error:
The average score lies within 4% of 70%. This means the margin of error is 4% i.e. the average scores can deviate from 70% by 4% .
Confidence Interval:
Lower Limit = 70% - 4% = 66%
Upper Limit = 70% + 4% = 74%
Interpretation:
The exam creator is 90% confident that the average scores of seniors will be between 66% and 74%.
Answer: 2x+12
Step-by-step explanation:
Multiply 2 by each number and letter in the parenthesis.
2*x+2*6=2x+12
Answer:
1/2
Step-by-step explanation:
1/2*1*1= 1/2
