Plz help! I’m super confused! Thank you!
1 answer:
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Answer:
Among the five statements,statement 1 and 4 are true for the circle shown.
Step-by-step explanation:
Given:
An image is attached here.
A circle with radius = 15.4 m
We ave to find the diameter,circumference and relationship between the two.
Formula to be used:
⇒ Diameter of a circle = 2r
⇒ Circumference = 2πr
Lets find the values.
- Diameter =
m
- Circumference =
m
- Relationship =
We can say that a little more than 3 diameters could be wrapped around the circle.
From the drop down our choices are.
- The diameter of the circle is 30.8 m.
- The approximate circumference of the circle ,rounded to the nearest tenth is 96.7 m.
Option 1 and 4 are the right choices.
The z or t score to be used is (0.422,0.978)
How to find the critical value ?
Critical probability (p*) = 1 - (Alpha / 2), where Alpha is equal to 1 - (the confidence level / 100), is the unit statisticians use to determine the margin of error within a set of data in statistics.
The critical value for α = 0.13 is
The corresponding confidence interval is computed as shown below
CI = (0.422, 0.978)
0.422< mu1 - mu 2 < 0.978
To learn more about finding the critical value from the given link
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