How can I Estimate the mean length. How can I select the modal class ?
1 answer:
Answer:
To estimate the mean length.
From the table lengths and its corresponding frequency are given
we know that,
The mean formula is defined as the sum of the observations divided by the total number of observations.
The formula to calculate the mean of grouped data. The formula is,
we get, Midpoint of the intervals are,
0.95, 2.95, 4.95, 6.95, 8.95, 10.95
Mean is,
we get,
Answer is: 6.034
You might be interested in
Answer:
Step-by-step explanation:
Rising 30 feet for every 400 feet of track is not a very large angle of elevation. We set this up as a right triangle to use right triangle trig to solve for the missing angle. The height is 30 and the hypotenuse is 400. The height is the side opposite the angle in question, and the hypotenuse is the hypotenuse! This is the sin ratio. Setting up the ratio using our info:
When you are looking for a missing angle measure, as we are here, use the 2nd-->sin buttons to find the inverse of sin, which looks like this:
Enter in the fraction 30/400 after the parenthesis and then hit enter to get the angle measure of 4.3 degrees.