Answer:
Therefore the probability that a pen from the first box and a crayon from the second box are selected is 
Step-by-step explanation:
Probability:
The ratio of the number of favorable outcomes to the number all possible outcomes of the event.

Given that,
Three plain pencils and 5 pens are contained by the first box.
Total number of pens and pencils is =(3+5)=8
The probability that a pen is selected from the first box is
=P(A)


A second box contains three colored pencils and three crayons.
Total number of pencils and crayons is =(3+3)=6
The probability that a crayon is selected from the second box is
=P(B)


Since both events are mutually independent.
The required probability is multiple of the events
Therefore the required probability is


A quadtriatel is said to contain perpendicular diagnols if four go 90 degree angles are formed at the intersection of these lines
609 hours is how long it takes so add seven minutes to that and the totall time is 609 hours 7 minutes
Philip and Barbara are 8 meters apart because 5+3=8 so it will make 8 meters
16, 18, 23, 25, 26, 34, 37, 37, 40, 41, 46
37 is the upper quartile value