23. Explain the Error Student A and student B were given the following graph and asked to find the value of f(x) when x= 1. Stud
ent A gave an answer of 0 while student B gave an answer of -2. Who is incorrect? Explain the error. 
1 answer:
You might be interested in
Answer + Step-by-step explanation:
(a)
Check the attached image.
(b)
Range of sample means : 7.5 - 5.75 = 1.25
(c)
The closer the range of the sample means is to 0 ,
the more confident they can be in their estimate .
The farther the range of the sample means is from 0 ,
the more confident they can be in their estimate .
The mean of the sample means will tend to be a better estimate
than a single sample mean .
A single sample mean will tend to be a better estimate
than the mean of the sample means .
Answer:
Step-by-step explanation:
The given quadratic equation is :
One of the roots of this equation is twice that of the other. Let the roots are ,
Sum of roots,
Product of roots,
If ,
So, the value of k is equal to .