Answer:
28+49
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
b) 0.0007
c) 0.4163
d) 0.2375
Step-by-step explanation:
We are given the following:
We treat securities lose value as a success.
P(Security lose value) = 70% = 0.7
Then the securities lose value follows a binomial distribution, where
 
where n is the total number of observations, x is the number of success, p is the probability of success.
Now, we are given n = 20.
a) Assumptions
- There are 20 independent trials.
- Each trial have two possible outcome: security loose value or security does not lose value.
- The probability for success of each trial is same, p = 0.7
b) P(all 20 securities lose value)
We have to evaluate:
 
0.0007 is the probability that all 20 securities lose value.
c) P(at least 15 of them lose value.)
 
d) P(less than 5 of them gain value.)
P(gain value) = 1 - 0.7 = 0.3
 
 
        
             
        
        
        
Answer:
r=4cm
d	Diameter	
cm
d
r
r
r
d
d
C
A
Unit Conversion:
d=8cm
Using the formula
d=2r
Solving forr
r=d
2=8
2=4cm
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
step 1. what is 4^2?
step 2. 16.
 
        
             
        
        
        
So what does it want you to what’s the equation