Question

please explain the difference between right and left skewed graphs, how you can tell from this graph, and additionally how to calculate a percentile range for part b

A middle-school teacher teaches a class of 36 pupils. She decides to plot a histogram of her students' weight (shown below) 2. 16 14 t 12 10 6 4 2 0.5 35.5 40.5 45.5 50.5 55.5 60.5 65.5 Weights (in kg)> a. (2 points) What is the skew of the weight distribution? (circle one) LEFT-SKEWED RIGHT-SKEWED HARD TO TELL b. (3 points) The 30th percentile of the weight distribution lies in the range: fromt

Answer 1

To find the 10th or 11th observation, we arrange the observations in ascending order and then find accordingly. Since here there is no data given, we have a look at the histogram. The first 9 observations fall in the first block of the histogram, 30.5 to 35.5 kg range. Therefore, naturally, the 10th and 11th observation will lie in the 35.5 to 40.5 kg range. Thats the answer. The 30th percentile range will be 35.5 to 40.5, where the 30th percentile lies in ( percentile calculated above in the image uploaded ,).

Hope to see a feedback dear, all the best!

Answer 2

To find the 10th or 11th observation, we arrange the observations in ascending order and then find accordingly. Since here there is no data given, we have a look at the histogram. The first 9 observations fall in the first block of the histogram, 30.5 to 35.5 kg range. Therefore, naturally, the 10th and 11th observation will lie in the 35.5 to 40.5 kg range. Thats the answer. The 30th percentile range will be 35.5 to 40.5, where the 30th percentile lies in ( percentile calculated above in the image uploaded ,).

Hope to see a feedback dear, all the best!