Am i right on this math problem?
2 answers:
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The value of c is equal to
Data:
- Opposite = 7
- Angle = 45 degrees
- hypothenuse = c
To solve this problem, we need to use trigonometric ratio SOHCAHTOA.
Since we have opposite and hypothenuse value, we can use sine angle for this.
Let's substitute the values into the formula
The value of c is equal to
Learn more on trigonometric ratio here;
Answer:
A. Wider and would have a smaller chance of missing the true mean.
Step-by-step explanation:
Margin of error for a confidence interval:
The margin of error for a confidence interval is given by:
In which z is related to the confidence level(the higher the confidence level, the higher the value of z), is the standard deviation of the population and n is the size of the sample.
95% confidence interval
Would be wider than the 90% confidence interval, due to the higher value of z.
Also, a x% confidence interval has a x% chance of having the true mean, and a (100-x)% probability of missing the true mean.
Then, a 95% confidence interval has a smaller(5%) chance of missing the true mean compared to the 90% confidence interval(10%). This means that the correct answer is given by option A.