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: 1 1/3
Step-by-step explanation: slope is the difference in y values over the difference in the c values
the answer to this question (-2,3)
<span>Four pounds of apples cost $1.96
so each pound cost: $1.96 / 4 = $0.49 or 49 cents
hope it helps</span>
