a fast food restaurant sold 63 burgers with cheese. if the ration of burgers sold with cheese compared to without cheese was 7 :
1 answer:
You might be interested in
Answer: 11.9%
Step-by-step explanation:
Given : On a stretch of Interstate-89, car speed is a normally distributed variable with mph and
mph.
Let x be a random variable that represents the car speed.
Since ,
z-score corresponds x = 73 ,
Required probability :
[using z-value table.]
Hence, the approximate percentage of cars are traveling faster than you = 11.9%