John has 6 green marbles and 4 purple marbles. he chooses a marble at random, writes down its color, and then puts the marble back. he performs this process 5 times. what is the probability that he chooses exactly two green marbles?

Find cot x if sin x cot x csc x = √2

Identify the statement below as either descriptive or inferential statistics. upper a certain website sold an average of 117 books per day last week. is the statement an example of descriptive or inferential statistics? a. it is an example of descriptive statistics because it uses a sample to make a claim about a population. b. it is an example of inferential statistics because it uses a sample to make a claim about a population. c. it is an example of inferential statistics because it summarizes the information in a sample. d. it is an example of descriptive statistics because it summarizes the information in a sample.

X^2/100+y^2/25=1 the length of the major axis is: a)5 b)10 c)20