In a study of 250 adults, the mean heart rate was 70 beats per minute. Assume the population of heart rates is known to be appro
ximately normal with a standard deviation of 12 beats per minute. What is the 99% confidence interval for the mean beats per minute?
68.9 − 76.3
70 − 72
61.2 − 72.8
68 − 72
68.9 − 76.3
70 − 72
61.2 − 72.8
68 − 72
1 answer:
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The volume of a cone with a diameter of 30 feet and a height of 60 feet is 14130.
<h3>What is the volume of a cone?</h3>The volume of the cone is given by;
The volume of a cone with a diameter of 30 feet and a height of 60 feet.
The radius of the cone is;
Substitute all the values in the formula
Hence, the volume of a cone with a diameter of 30 feet and height of 60 feet is 14130.
Learn more about the volume of cone here;
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Answer:
Step-by-step explanation:
circumference = 2r
= 2 × 3.14 × 50
= 31.4 mm
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