Answer:
69.53
Step-by-step explanation:
I did it on my calculator.
This is independent as he is picking up cards randomly.
A.) Probability of selecting two students and two faculty members from 20 students and 5 faculty volunteers = no of ways of selecting two students and two faculty members from 20 students and 5 faculty volunteers divided by the number of ways of selecting 4 people from 25 people = (20C2 x 5C2) / 25C5 = 1900 / 53130 = 0.036 = 3.58%
b.) Probability of selecting three students and one faculty members from 20
students and 5 faculty volunteers = no of ways of selecting three students
and one faculty members from 20 students and 5 faculty volunteers
divided by the number of ways of selecting 4 people from 25 people = (20C3 x 5C1) / 25C5 = 5700 / 53130 = 0.107 = 10.7%
If I understood this correct
43a^2/36b^7
Answer:
1:5 is the ratio of red to white
Step-by-step explanation:
4:20 can be simplified to 1:5 by dividing by 4
5:25 can be simplified to 1:5 by dividing by 5
7:35 can be simplified to 1:5 by dividing by 7
8:40 can be simplified to 1:5 by dividing by 8
