<u>Events</u> A and B are called <u>independent</u>, when

otherwise events A and B are <u>dependent</u>.
The events A, B and A∩B are:
- A - Jane will go to a ballgame on Monday;
- B - Kate will go to a ballgame on Monday;
- A∩B - Kate and Jane both go to the ballgame on Monday.

Answer: events A and B are dependent
<u>Answer-</u>

<u>Solution-</u>
Given expression is 
Applying Binomial Theorem

Here,
a = x, b = 2 and n = 4
So,

Expanding the summation




Answer:
No. The results of the survey cannot be generalized to the population of all customers of the shopping mall.
Step-by-step explanation:
Survey results are biased, because data is collected from customers who came trough one specific door of the mall.
Some of the customers <em>may be using some other door </em>where satisfaction survey is not given to these people while passing the door.
Therefore survey results does not reflect thoughts of the population of all customers.
Answer:
a) 129 University of California undergraduates at Berkeley.
b) (i) social-class (ordinal), (ii) money (continuous), (iii) education (ordinal)
, (iv) respected job (ordinal), (v) number of candies (continuous)
c) The main question is to find the relationship between socio-economic class and unethical behaviour
Step-by-step explanation:
a) 129 University of California undergraduates at Berkeley.
b)
i) social-class (ordinal)
ii) money (continuous)
iii) education (ordinal)
iv) respected job (ordinal)
v) number of candies (continuous)
c) The main question is to find the relationship between socio-economic class and unethical behaviour