Answer:
3. Standard deviation is the square root of the variance.
4. Standard deviation is useful because it has the same units as the underlying data.
Step-by-step explanation:
3. In statistics, the dispersion in a given data with respect to its mean distribution can be determined or measured by standard deviation and variance. The standard deviation of a distribution can also be determined as the square root of variance.
4. Standard deviation is measured in the same units as that of the original data. Thus it has the same units as the underlying data.
Answer:
Tootsie Rolls = 13
Step-by-step explanation:
Given:
Milky Ways and Tootsie Rolls together were 15 more than the number of Reese's Cups.
There were 4 fewer Reese's Cups than Hershey Bars.
There were 12 Milky Ways and 14 Hershey Bars.
Solution
Milky Ways and Tootsie Rolls = Reese's Cups + 15
There were 4 fewer Reese's Cups than Hershey Bars.
Hershey Bars = 14
Then,
Reese's Cups = 14 - 4
= 10
Milky ways = 12
Hershey bars = 14
Reese's Cups = 10
Milky ways = 12
Milky Ways + Tootsie Rolls = Reese's Cups + 15
12 + Tootsie Rolls = 10 + 15
12 + Tootsie Rolls = 25
Subtract 12 from both sides
Tootsie Rolls = 25 - 12
= 13
Tootsie Rolls = 13
Answer:
f(x)=
Step-by-step explanation:
Answer:
Remove parentheses. xy³
z^4
4Step-by-step explanation:
