Answer: 0.1677
Step-by-step explanation: Two events are said to be independent if the probability that one event occurs does not affect the probability of the other event
occurring, i.e in coin tossing the event of getting a head does not affect the event of getting a tail. Given two
events, A and B that are independent, probability they all occur is given by:
P(A) x P(B)
There are 3 Vice presidents hence the probability of a vice president not being invited = 1 -1/5 = 0.8
The event of inviting the vice presidents are independent, hence :
P(A vice president has not been invited for the last 8 Lakers home games) =
0.8^8 = 0.1677
Hence P(this could be due to chance) =
0.1677
P (blue/blue) = 7/9 x 4/9 = 28/81
P (pink/pink) = 2/9 x 5/9 = 10/81
28/81 + 10/81 = 38/81
P (Same colour) = 38/81
Answer: The answer is (B) ∠SYD.
Step-by-step explanation: As mentioned in the question, two parallel lines PQ and RS are drawn in the attached figure. The transversal CD cut the lines PQ and RS at the points X and Y respectively.
We are given four angles, out of which one should be chosen which is congruent to ∠CXP.
The angles lying on opposite sides of the transversal and outside the two parallel lines are called alternate exterior angles.
For example, in the figure attached, ∠CXP, ∠SYD and ∠CXQ, ∠RYD are pairs of alternate exterior angles.
Now, the theorem of alternate exterior angles states that if the two lines are parallel having a transversal, then alternate exterior angles are congruent to each other.
Thus, we have
∠CXP ≅ ∠SYD.
So, option (B) is correct.