Answer:
a) mean = 0.2
variance = 0.0391
standard deviation = 0.198
b) The average hurricane is aprox. category 2.* (B)
Step-by-step explanation:
In order to find the mean, variance, and standard deviation, let us for a table for the data:
level x
1 0.411
2 0.278
3 0.221
4 0.080
5 0.010
Calculating the mean ()
∴Mean = 0.2
level x
1 0.411 0.211 0.0445
2 0.278 0.078 0.0608
3 0.221 0.021 0.000441
4 0.080 -0.12 0.0144
5 0.010 -0.19 0.0361
standard deviation = √(variance)
Standard deviation = √(0.0391)
Standard deviation = 0.198
b) the average hurricane is aprox. category 2 (B)
Answer: i think this is it
the answer would be 3
Step-by-step explanation:
It says something like this: Multiply each value by the frequency of that value: 1*7, 2*1, etc. I'll let you write down the rest.
Divide by the sum of the frequencies, 7 + 1
Answer:
-24
Step-by-step explanation:
you're welcome
Answer: 13a-6b
Step-by-step explanation:
Answer:
The answer is E
Step-by-step explanation:
hope it helps