Answer:
A ∩ B = {1, 3, 5}
A - B = {2, 4}
Step-by-step explanation:
The given problem regards sets and set notation, a set can simply be defined as a collection of values. One is given the following information:
A = {1, 2, 3, 4, 5}
B = {1, 3, 5, 6, 9}
One is asked to find the following:
A ∩ B,
A - B
1. Solving problem 1
A ∩ B,
The symbol (∩) in set notation refers to the intersection between the two sets. It essentially asks one to find all of the terms that two sets have in common. The given sets (A) and (B) have the values ({1, 3, 5}) in common thus, the following statement can be made,
A ∩ B = {1, 3, 5}
2. Solving problem 2
A - B
Subtracting two sets is essentially taking one set, and removing the values that are shared in common with the other set. Sets (A) and (B) have the following values in common ({1, 3, 5}). Thus, when doing (A - B), one will omit the values ({1, 3, 5}) from set (A).
A - B = {2, 4}
Answer:
A.one sample z-confidence interval for the population proportion
Step-by-step explanation:
-A confidence interval is a range of values in which the true population mean is believed to lie.
-Given just one sample, the one sample z-confidence interval for the population proportion is appropriate and is defined as:
<span>Given that B=(1,2,3,4) how many subsets have exactly two elements?
4C2 =
4! 4! 4 x 3
------------ = -------------- = --------------- = 6
2! (4-2)! 2! 2! 2 x 1
answer is 6</span>
