Answer:
The probability of selecting two Independents is
.
Step-by-step explanation:
From the given information it is clear that:
Democrats = 8
Republicans = 5
Independents = 5
Total number of member in the group is

We need to find the probability of selecting two Independents.
According to binomial distribution the total number of ways to select r items form n items is

Total number of ways to select 2 members from 18 members is

Total number of ways to select 2 members from 5 Independents is

The probability of selecting two Independents is


Therefore the probability of selecting two Independents is
.
Answer:
There are 9 boys and 12 girls in mrs Clark's class
Step-by-step explanation:
We are given that mrs Clark has 21 students, of which 3/7 are boys
In order to find the number of boys, we multiply 21 by 3/7 which results in 9
This means there are 9 boys and then we just simply subtract 9 from 21 in order to find the number of girls 21-9=12
therefore there are 9 boys and 12 girls in mrs Clark's class
Answer:
$9.89
Step-by-step explanation:
Old price=new price/(1+inflated rate)
=2000/(1+1.08)
=185.19 (approximately)
Answer:
32 laps
Step-by-step explanation:
If each mile is 1600 meters, she will need to run 4 laps per mile. To run 8 miles, multiple the laps for one mile (4) by the total number of miles (8) to get the total laps necessary (32).
Hope this helps!