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MOMMYDORA
08.10.2019 •
Mathematics
Number of cars
0
1
2
3
4
probability
0.03
0.13
0.70
0.10
0.04
allyn surveyed the teachers she works with at gca to find out how many cars they own. she created a provability distribution which is displayed below. what is the average number of cars owned by each teacher? (you must show all work to receive full credit.)
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Ответ:
ave = (0 * 0.03) + ( 1 * 0.13) + ( 2 * 0.70) + ( 3 * 0.10) + ( 4 * 0.04)ave = 0 + 0.13 + 1.40 + 0.30 + 0.16ave = 1.99 or about 2 cars is the average number of cars owned by each teacher
Ответ:
The correct expression is the "B" which is 35x + 15y =180.