APStatistics
Unit 4 Exam More on Two Variable Relationships: Free
Response
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surethatyouclearlylabeleachpagewithyourname.Youranswersforthis
assignmentmustincludereasons;simplystatingth
Statistics Assignment 10: Working with the Random Number Table
1.
a. The name of this sampling process is Stratified Random Sample; we are grouping
students together as one pool and faculty as another. This will be used to select the students and
faculty
APStatistics
Unit 2 The Normal Distribution Exam: Free Response
Directions:Completetheassignmentonthispaper.Ifyouneedadditionalpapermake
surethatyouclearlylabeleachpagewithyourname.Youranswersforthisassignment
mustincludereasons;simplystatingtheanswerwith
Expenses
2.3
1.5 6.5
3.5
4
10.9
55.6
15.7
Doctor's personal income
Non-physician personnel
Ofice expenses
Medical supplies
Malpractice insurance premiums
Employee physicians
Medical equipment
Other
Statisti
cs Assignment 2: Working with Graphs
1.
a.
Expen
Statistics Assignment 6: Looking at the Data
Data Set 1
12
10
8
Y-Values
Linear (Y-Values)
6
4
2
0
2
4
6
8
10
12
14
16
1.
The data is a moderate positive relationship. The mean for x is 9 and the mean for y is
7.5. The standard deviation for x is 3.16 and
Statistics Assignment 5: Normal Calculations and Drawings
1.
Z = (22 16) / 3.2 = 1.875
Z = (10 16) / 3.2 = -1.875
Using table A, the probability for z (1.875) is 0.9699 and the
probability for z(-1.875) is 0.0301. So, the proportion of the
general populat
Statistics Assignment 4: Data Distributions
1.
a. The right endpoint of the segment is
(1.414, 1.414).
b. Since the curve has a slope of one, the median would be at the center of the span which
would be (1, 1) because half of the area under the curve of o
Statistics Assignment 1: Types of Data and Statistics
1.
a. The color of a Reeses Pieces Candy is qualitative because color is a category and not
something that can be measured.
b. The number of students in the senior class at Jackson High School is quant
Statistics Assignment 12: Rules of Probability
1.
a. A sample space for a roll of the pair of dice is
cfw_(1,1)(1,2)(1,3)(1,4)(1,5)(1,6)(2,1)
(2,2)(2,3)(2,4)(2,5)(2,6)(3,1)(3,2)(3,3)(3,4)(3,5)(3,6)
(4,1)(4,2)(4,3)(4,4)(4,5)(4,6)(5,1)
(5,2)(5,3)(5,4)(5,5)(
Statistics Assignment 7: Olympic Gold Medal Performances
1. y(hat) = ax + b. a = 0.6664 and b = 279.26. r2 = 0.8098, so r = 0.89989. This can also be
interpreted as a normal plot because it shows that the values are strongly associated to the line so
that
Statistics Assignment 3: Measures of Central Tendencies
1. My number set is 1, 2, 10, 11, 11. I knew that 10 had to be in the center for it to be the median
so I made sure to have two smaller numbers and two greater numbers. Since there were five
numbers
Statistics Assignment 8: Transforming Data
1.
a. The line appears to be a semi-good model for this plot since many of the variables are
not too far away from this regression line. The r value is 0.903 which is fairly strong which fits
the need for having
Statistics Assignment 11: Experimental Design
1.
a. Firstly, I would divide the subjects into three groups of 50 randomly. The first group
would be used as the control and not be given Vitamin C to study the effects and see if Vitamin C
appears to reduce