A sample in which every person or object does not have an equal chance of being selected. (Mark as brainliest)
A girl has 20 marbles
10 are red, 7 are blue, and 3 are green
If she picks 5 marbles, without replacing them, what are the chances all 5 are red?
10/20 * 9/19 * 8/18 *7/17 * 6/16
1/2 * 9/19 * 4/9 * 7/17 * 3/8
1/2 * 1/19 * 3/2
1/76
The answer, is 2 1/9. subtract 1 7/7 from 3 1/2, and you'll get 2 1/2
(hope this helps)
Fjhjndfxbsdfbsdfbsbdfdsdfdfbdfb
Answer:
8663
Step-by-step explanation:
2×34=68
7836-68=7768
7768-89=7679
7679+984=8663
i believe
