Answer
whats the problem.
Step-by-step explanation:
it's hard so I also can't tell the answer
Complete Question
The complete question is shown on the first uploaded image
Answer:
a

b

c

d
The correct option is B
Step-by-step explanation:
From the question we are told that
The mean is 
The standard deviation is 
Generally the probability that a randomly selected study participant's response was less than 4 is mathematically represented as


So

From the z-table 
So

Generally the probability that a randomly selected study participant's response was between 4 and 6 is mathematically represented as

=> 
=> 
=> 
From the z-table

So

=> 
=> 
Generally the probability that a randomly selected study participant's response was more than 8 is mathematically represented as


From the z-table 
So
