Answer:
B) 5
Step-by-step explanation:
f(-2) = (-2)² + 5•(-2) +11
f(-2) = 4 -10 +11
f(-2) = 5
The standard deviation is 4 games
A standard deviation (or σ) is a measure of how dispersed the facts are in relation to the mean. Low general deviation method statistics are clustered around the imply, and excessive trendy deviation indicates facts are more unfold.
Don't forget the statistics set: 2, 1, 3, 2, four. The mean and the sum of squares of deviations of the observations from the mean will be 2. 4 and 5.2, respectively. as a consequence, the same standard deviation could be √(5.2/5) = 1.01.
In data, the same old deviation is a degree of the quantity of variant or dispersion of a set of values. A low preferred deviation indicates that the values tend to be close to the mean of the set, while a high general deviation shows that the values unfold out over a much broader variety.
Given that,
mean = μ = 18
standard deviation = Σ = 6
n = 2
μ x = μ = 18 games
√ x = Σ / √ = 6
√2 = 4 games
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The improper fraction -8/3 is equivalent
Answer:
Step-by-step explanation:
Given
Required
Determine the amount of sweet Ivy gets when Dennis = 42
We have:
and
Substitute 42 for Dennis in
Convert to fraction
Cross Multiply:
Divide through by 7
