Answer:
Events A and B are not independent.
Step-by-step explanation:
In order for two events to be independent, the following relationship must be true:
The intersection between events A and B is the outcome that Bob and Alice have exactly one girl, the probability is:
For event A, the possible outcomes are having one or two girls:
For event B, the possible outcomes are having none or one girl:
Therefore, P(A) x P(B) is:
Since P(A) x P(B) ≠ P(A∩B), events A and B are not independent
Given:
The population density of Iceland, in people per square kilometer of land area, increased from 2.5 in 1990 to 3.3 in 2014.
Land area of Iceland = 100,250 square kilometers.
To find:
The Iceland's population increase from 1990 to 2014.
Solution:
Land area of Iceland is constant, i.e., 100,250 square kilometers.
The population density of Iceland, in people per square kilometer of land area in 1990 is 2.5. So, the population in 1990 is
population density of Iceland, in people per square kilometer of land area in 2014 is 3.3. So, the population in 2014 is
The Iceland's population increase from 1990 to 2014 is
Therefore, the correct option is D.
Answer:
Step-by-step explanation:
From the information given:
We are to find; an expression for the total no. of articles written since 1983
∴
The total no. of articles written since 1983
Therefore, the total number of articles written since 1983 is
b. To find how many articles were being written from 1983 to 2003
i.e. t = 2003 - 1983 = 20
∴
Total articles written from 1983 to 2003 is
= 80.75 thousand articles
Answer: Well 2 x 23 = 46, So the 23rd floor
Step-by-step explanation: :)
2a + 7b = 0 ⇒ 10a + 35b = 0
3a - 5b = 31 ⇒ 21a - 35b = 217
31a = 217
a = 7
2a + 7b = 0
2(7) + 7b = 0
14 + 7b = 0
7b = -14
b = -2
(x, y) = (7, -2)
1. Associative Property of Addition
2. Addition Property of Equality
3. Division Property of Equality
4. Substitution Property of Equality
5. Multiplication Property of Equality
6. Subtraction Property of Equality
7. Simplify