A Cluster is a term used to describe data that contains points that are similar which make them appear clustered or grouped together on a scatter plot.
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Answer: a)
b) 
Step-by-step explanation:
Since we have given that
Number of days in a year = 365
Number of students = 50
Probability that no two students share the same birthday. It means each student has different birthday.
Probability(no two students share the same birthday)
Probability(no two students share the same birthday)
Probability(no two students share the same birthday)
Probability that at least one of the students has the same birthday as another student in the class is given by

11/3 is the same as 11 divided by 3 so that wiuld be 3 remander 2 so it would be 3 2/3
Make an equation:
5x+12=6x
Use the subtraction property:
x=12
The final answer is that the cost for members and nonmembers will be the same when there have been 12 classes.
Answer:
x=15
Step-by-step explanation:
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