How does the mean absolute deviation (MAD) of the data in set 1 compare to the mean absolute deviation of the data in set 2?
2 answers:
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The fraction 18/24, reduced to its lowest terms, is:
_____________________________
Divide both the numerator and the denominator by the GCD of 18 and 24, which is 6:
18 ÷ 6 = 3
24 ÷ 6 = 4
It's simplest form would be 3/4. This cannot be reduced further.
The fraction 18/24, reduced to its lowest terms, is:
_____________________________
Divide both the numerator and the denominator by the GCD of 18 and 24, which is 6:
18 ÷ 6 = 3
24 ÷ 6 = 4
It's simplest form would be 3/4. This cannot be reduced further.
Answer:
1)
For this case we can interpret that the expected variation around the mean is about 3.3 people approximated
2)
And we can use the normal approximation given by:
And we can use the z score formula given by:
And if we find the z score for 16 we got:
And we can find this probability using the normal standard distribution or excel and we got:
3) For this case we can conclude that the probability to find 16 or more individuals left handed in a sample of 120 is about 0.112 or 11.2%
Step-by-step explanation:
Let X represent the random variable for the number of residents who are left handed
And for this case we can model this variable with this distirbution:
Part 1
The mean is given by:
And the deviation would be:
For this case we can interpret that the expected variation around the mean is about 3.3 people approximated
Part 2
We want to calculate this probability:
And we can use the normal approximation given by:
And we can use the z score formula given by:
And if we find the z score for 16 we got:
And we can find this probability using the normal standard distribution or excel and we got:
Part 3
For this case we can conclude that the probability to find 16 or more individuals left handed in a sample of 120 is about 0.112 or 11.2%