The Russell 2000 index of stock prices increased by the following amounts over the last three years.
18%, 4%, 2%
What is the geometric mean increase for the three years?
The information below refers to the selling prices ($000) of homes sold in Warren, PA, during 2010.
|
Selling Price ($000)
|
Frequency
|
|
120.0 up to 150.0
|
4
|
|
150.0 up to 180.0
|
18
|
|
180.0 up to 210.0
|
30
|
|
210.0 up to 240.0
|
20
|
|
240.0 up to 270.0
|
17
|
|
270.0 up to 300.0
|
10
|
|
300.0 up to 330.0
|
6
|
a. What is the class interval?
b. How many homes were sold in 2010?
c. How many homes sold for less than $210,000?
d. What is the relative frequency of the 210 up to 240 class?
e. What is the midpoint of the 150 up to 180 class?
f. The selling prices range between what two amounts?