For this case we propose a system of equations:
x: Variable representing the weight of large boxes
y: Variable that represents the weight of the small boxes
So
We clear x from the first equation:
We substitute in the second equation:
We look for the value of x:
Large boxes weigh 50 pounds and small boxes weigh 30 pounds
Answer:
Large boxes weigh 50 pounds and small boxes weigh 30 pounds
Answer: About 99.7% of sixth-grade students will have
heights between <u>51.1</u> inches and <u>64.9</u> inches.
Step-by-step explanation:
According to the empirical rule, 99.7% of data falls within the three standard deviations from the mean.
Given : Mean:
Standard deviation:=
Then, the 99.7% of sixth-grade students will have heights between
inches and
inches
i.e. inches and
inches
i.e. 51.1 inches and 64.9 inches.
