Answer:
B. Events A and B are mutually exclusive if A and B have no sample points in common.
Step-by-step explanation:
When two events( call them A and B) are mutually exclusive , it is impossible for them to happen together.
P(A and B) = 0
"The probability of A and B together equals 0 (impossible)"
Hence, the correct answer is B.
B. Events A and B are mutually exclusive if A and B have no sample points in common.
There is 17% error in the guess.
Step-by-step explanation:
Given,
Number of marbles in jar = Exact value = 240
Closest guess = Approx Value = 280
Percent error = 
Percent error = 
Percent error = 
Percent error = 
Rounding off to nearest whole percent
Percent error = 17%
There is 17% error in the guess.
Keywords: percentage, division
Learn more about percentage at:
#LearnwithBrainly
Umm try using your house it has parallel lines length width height 90° angles and so much more ( idk what your house looks like so....)