The math department is putting together an order for new calculators. The students are asked what model and color they prefer.
Model 55 Model 66 Model 77 Total
Black 0.10
0.40
0.30
0.80
Silver 0.03
0.07
0.10
0.20
Total 0.13
0.47
0.40

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

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

Which of the following is not a subset of {1,2,3}?