statistics -The standard deviation of the Normal distribution is about

1. The standard deviation of the Normal distribution is about
10
20
70
100
2. The mean of any density curve is the
Point where the curvature of the curve changes.
Point at which the curve reaches its highest value.
Point at which the curve would balance if made of solid material.
Point with half the area under the curve to its left and half to its right.
3. A correlation cannot have the value
0.4
-0.75
1.5
0.0
0.99
4. A gallon of milk cost $2.48 in 1995, while a gallon of milk cost $3.57 in 2011. Using 1995 as
the base year, what is the gallon of milk index number for 2011?
0.09
$0.69
$1.44
69
144
5. The breakfast fixed market basket consists of on gallon of milk, one pound of sliced bacon,
and one dozen eggs, In 1995, the gallon of milk cost $2.48, the pound of sliced bacon cost
$1.99, and the dozen eggs cost $0.93. In 2011, the gallon of milk cost $3.57, the pound of
sliced bacon cost $4.63, and the dozen eggs cost $1.77. What is the breakfast fixed market
basket price index in 2011 using 1995 as the base year?
185
$4
$1.85
$0.54
0.54

6. In-state tuition and fees at Virginia Commonwealth University (VCU) was $9517 for the 201112 academic year. The CPI for 2011 was 224.9 and the CPI for 2001 was 177.1. What is the
2011-2012 tuition in 2001 dollars?
$1270
$1642
$7494
$7875
$12,086
7. The average price of a pound of bananas was 36.2 cent in 1981 and 61.0 cent in 2011. What
is the bananas index number (1981=100) for 2011?
1.685
1.685 cent
24.8 cent
59.3
168.5