Q2. 90% of flights depart on time. 80% of flights arrive on time. 75% of flights depart on time and arrive on time. Are the events, departing on time and arriving on time, independent?

Events departing on time and arriving on time are NOT independent.

Explanation:

If two events A and B are independent, then

P(A and B) = P(A) * P(B)

Here

A = flights depart on time

B = flights arrive on time

P(A) = 0.90

P(B) = 0.80

If A and B are independent, then

P(A and B) = P(A) * P(B) = 0.9 * 0.8 = 0.72

Since

the observed value of P(A and B) is 0.75,

assuming that there are no observation errors, we conclude that the two events A and B are not independent.

i believe the answer is: streets and roads

public property refers to the property that can be used by all legal citizens in a certain country. the public property was created and maintain using the government budget that allocated specifically for it. the budget itself come from the citizen's income tax payment.

odd consecutive integers are odd integers that follow each other. they have a difference of 2 between every two numbers. if n is an odd integer, then n, n+2, n+4 and n+6 will be odd consecutive integers. the first number in the pattern is always the variable on its own or in this case, "n". examples.