Answer:
I believe it's an enlargement, because 5/2 is more than one whole.
Step-by-step explanation:
Answer:
(130.08, 139.92)
Step-by-step explanation:
Given that:
Mean (m) = 135
Standard deviation (σ) = 30
Sample size (n) = 100
α = 90%
The confidence interval value is obtained using the relation:
Mean ± Zcritical * (standard deviation / sqrt(n))
Zcritical at 90% = 1.64
standard deviation / sqrt(n) = 30 / sqrt(100)
= 30 / 10 = 3
Hence,
135 ± 1.64 * (3)
Lower limit : 135 - (1.64 * 3) = 130.08
Upper limit : 135 + (1.64 * 3) = 139.92
Hence,
Confidence interval = (130.08, 139.92)
Answer: 6 inches.
Step-by-step explanation:
1. You must use the formula for calculate the area of a circle, which is shown below:

2. You know the area of the circle, therefore, you can solve for the radius, as following:

3. Now, you must substitute the value of the area into the equation above. Then, you obtain the following result:

From 2010 year to 2015 year 5 years passed, then t is equal to 5.
To find how many people attended the festival in 2015 we have to calculate y(5):
Answer: 447,898 p. attanded festival in 2015