A bag contains 3 red balls and 2 blue balls. A ball is taken at random from the bag and then put back. And then a second ball is then taken out of the bag. The probability tree for this situation is shown below. What is the probability of getting 2 red or 2 blue balls?

Question 7 options:

.52

.36

.16

.2

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.