It is <span>B</span>. All u have to do is -2a/b which is 2 then plug 2 in and you get (2,1)
Answer: p-value is 0.016.
Step-by-step explanation:
Since we have given that

Sample mean = 19.4
Sample size n = 50
Standard deviation = 2
We need to find the test statistic value which is given by

p-value is given by

Hence, p-value is 0.016.
Answer:
view the picture
Step-by-step explanation:
It is self explanatory
878/3 is 28 with a remainder of 10! The error is when they subtracted 258-248 wrong