A chi-square test of independence is considered to be valid if each of the expected cell frequencies are:

Fiona races bmx around a circular dirt course. if the radius of the course is 70 meters, what is the total distance fiona covers in two laps of the race? a. about 30,772 meters b. about 15,386 meters c. about 879.2 meters d. about 439.6 meters e. about 219.8 meters23 points hurry

Which of these triangle pairs can be mapped to each other using two reflections?

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list