Question

2. The data set shows the weights of pumpkins, in pounds, that are chosen for a photograph in a farming magazine.
18 22 14 30 26
(a) What is the mean, , of the data set?
(b) What is the sum of the squares of the differences between each data value and the mean? Use the table to organize your work.
x

(c) What is the standard deviation of the data set? Use the sum from Part (b) and show your work.
(d) A second group of pumpkins, with weights of 32, 35, 33, 34, and 36 pounds, are chosen for another photograph. Will the standard deviation of these weights be gr

Answer 1

x_1=18
x_2= 22
x_3=14
x_4=30
x_5=26
Mean is the average: (add all the numbers divided by the number of total numbers in the list)

Answer 2

x-bar represents the mean value.

Answer 3

standard deviation.
add all the values in column 3, divide by the ( total number in the list minus 1)
and then take the square root.

Answer 4

bad handwriting o.o oh well...