The first quartile of a data set
is 2.5. which statement
about the data values is true?
a. one fourth of the values are less then or equal to two. five, and 3/4 of the values are greater than or equal to 2.5. b .half of the values are less then or equal to 2.5, and half of the values are greater than or equal to 2.5. c.1/4 of the values are less then or equal to 2.5, and half of the values are greater than or equal to 2.5. d.3/4 of the values are less than or equal to 2.5, and 1/4 of the values are greater than or equal to 2.5.

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

Given the choice between receiving $1.000.000 in one month or a single penny-doubled everyday for the period of one month; which option would you choice? show your work to support your answer. (assume that 1 month=30 days)

There are two major tests of readiness for college: the act and the sat. act scores are reported on a scale from 1 to 36. the distribution of act scores in recent years has been roughly normal with mean µ = 20.9 and standard deviation s = 4.8. sat scores are reported on a scale from 400 to 1600. sat scores have been roughly normal with mean µ = 1026 and standard deviation s = 209. reports on a student's act or sat usually give the percentile as well as the actual score. the percentile is just the cumulative proportion stated as a percent: the percent of all scores that were lower than this one. tanya scores 1260 on the sat. what is her percentile (± 1)?