A rhino can run at speeds of about 28 miles per hour. What is that speed in feet per second, to the nearest whole number?
2 answers:
Answer:
The speed of a rhino is 41 feet/second.
Step-by-step explanation:
A rhino can run at speed of about 28 miles per hour.
In one hour a rhino can run = 28 miles
As we know 1 hour = 3600 seconds
1 mile = 5280 feet
28 miles = 5280 × 28 = 147,840 feet
Therefore, we can say in 3600 seconds a rhino can run = 147,840 miles
So the speed per second = = 41.06 ≈ 41 feet
The speed of a rhino is 41 feet/second.
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Answer:
chisquare = 31.667
degree of freedom = 2
Step-by-step explanation:
Formula for chisquare test = (O-E)²/E
total number observations= 60 + 25 + 15 = 100
Estimated E,
80% x 100 = 80
15%x100 = 15
5% x 100 = 5
chisquare =
= 5 + 6.67 + 20
= 31.667
from the calculation above the value of the chisquare statistic = 31.67
the degree of freedom is the number of samples in the test n - 1
= 3-1
= 2
I have solve this question also in a tabular form to aid understanding in the file i uploaded.
thank you and good luck!
