Answer:
B
Step-by-step explanation:
Answer:
55
Step-by-step explanation:
Answer: B. Population X will require a larger sample size
Step-by-step explanation:
- If a random variable say p has skewed distribution (whether right or left ) in a population then a bigger sample size is needed to make sure that the sampling distribution follows normal distribution.
Given : Two population distributions labeled X and Y.
Distribution X → highly skewed
Distribution Y → slightly skewed.
Since Distribution X more skewed so , we will need a larger sample size of population X as compared to Y.
Hence, the correct answer is B. Population X will require a larger sample size
Answer:
(x + y)1 - a)
Step-by-step explanation:
x + y - ax - ay
= x - ax + y - ay
= x(1 - a) + y(1 - a)
= (x + y)1 - a)
Answer:
a) Yes
b)No
c) Yes
d) No
Step-by-step explanation:
Remember, a collection of subsets of a set is a partition of if the union of the subsets is , that is, and the elements of are disjoints.
Let
Then
a) and .
Then the collection is a partition of B.
b) and
Since the sets aren't disjoints then they aren't a partition of B.
c)
and
Then the elements of the collection are disjoints.
Therefore, is a partition of B.
d) because . Then the collection isn't a partition of B.