9x - 21 = -42
This should be the type of equation that you're looking 4
Answer:
Konnichiwa
Step-by-step explanation:
Answer:
The correct option is 1.148 < σ < 6.015
Explanation:
The 99% confidence interval for the standard deviation is given below:

Where:


Therefore, the 99% confidence interval is:


Therefore, the option 1.148 < σ < 6.015 is correct
The others don’t make any sense so it has to be “A”.