Answer:the probability is 6/10 or 3/5
Step-by-step explanation:
Answer:
1/9
Step-by-step explanation:
I'm not sure what multiplication and division equals are, but you can just multiply the bottom of the fraction by the number of gallons.
English translation:
If the quality control manager wants to estimate the average life of lamps with 20 hours, with a confidence level of 95% and an error of 10% is assumed. What is the sample size?