Answer: b) The data is spread close to the mean
Step-by-step explanation: Theoretically, when the standard deviation of a statistical data is large or high, it simply means that the values in such statistical data set are farther away from the mean, On the other hand when the standard deviation is small or low, it simply means that the values of such statistical data are close to the mean of those data on average.
Therefore Judy's low standard deviation for her project simply indicates that her statistical data set is spread close to the mean.
Answer:
If he includes himself then:
Split up the cookies into 4 equal parts.

3.75 cookies each if he includes himself.
If he does not include himself:
Split up the cookies into 3 equal parts

5 cookies each if he shares to his friends without including himself.
Answer:
Yes, because it has one pair of parallel sides.
Step-by-step explanation:
Answer:
Cube
Step-by-step explanation:
Im not sure what the option choices are but a cube has 6 faces. :)
Answer:
s = 19.0
Step-by-step explanation:
To find s, use the Pythagorean Theorem.
a² + b² = c²
9² + b² = 21²
81 + b² = 441
b² = 360
b = √360
b = 18.97366596 ⇒ 19.0 (rounded to the nearest tenth)
So, s = 19.0.
Hope that helps.