I think 7x-y=-2 is the answer
The answer would be 71.45
X intercept- 3.5
y intercept- 2.5
Answer:
The correct option is b.
Step-by-step explanation:
The formula for standard deviation is

where,
is mean of the data and n is number of observation.
The variance of a stock's returns can be calculated by the above formula.
Variance of stock's returns is the average value of squared deviations from the mean.
Therefore the correct option is b.
Answer: a's value is (6,8) B is (-3,7), and C is (-7,-2)