Answer:
y=42
Step-by-step explanation:
7y = 6×49
y = (6×49)÷7
y= 42
Answer:
10%
Step-by-step explanation:
you would do 50/5 because all the sections are even so you would get 10%.
Answer: 
Step-by-step explanation:
Given : Sample size : n= 33
Critical value for significance level of
: 
Sample mean : 
Standard deviation : 
We assume that this is a normal distribution.
Margin of error : 
i.e. 
Hence, the margin of error is 
the answer a is 6 and b is 2