Answer:
The probability is 
Step-by-step explanation:
From the question we are told that
The population size is N = 31
The sample size n = 4
Generally the number of way by which the n can be selected from N is mathematically represented as
=>
=> 
=> 
=> 
The number of ways of selecting a particular sample size is is 
Therefore the probability of each simple random sample in this case is mathematically evaluated as

Answer:
Step-by-step explanation:
Answer:
.99 cents
Step-by-step explanation:
8.5 x 1.06= 9.01
Answer:
63.35
Step-by-step explanation:
1. Remember the sector formula which is Ø/360 x pi x radius squared
2. Square the radius (11 in this question)
3. 11 squared is 121
4. Get the answer from the squared radius and multiply it by pi
5. 121 times pi is 380.13
6. Mulitply the final number on that side by the degree over 360
7. 380.13 times 60/360 is 63.35
8. In the end you get 63.35 or if rounding to the nearest tenth 63.4
Hope this helps! Correct me if im wrong! :) Have a nice day!