Answer:
i think that answer is -21y^8
Answer:
21
Step-by-step explanation:
480,000,000 (480 million)
Answer: Sample size would be 296.
Step-by-step explanation:
Since we have given that
Standard deviation = 4.8 hours
Margin of error = 0.65 hours
At 98% level of confidence, z = 2.33
So, It becomes,

Hence, sample size would be 296.
It is D i hopes this helped like plz