Unit 1 Review
Remember: The test covers all material from the in-class lectures, homework, online lessons
and online labs.
1.
Find the answers to the following and round to 2 decimal places:
a) 75.45 12
b) 48,000 26
2.
Find the answers to the following an
2.2 Word Problems Worksheet
1.
The first stage of a rocket burns 28 seconds longer than the second stage. If
the total burning time for both stages is 152 seconds, how long does each
stage burn?
2.
In a student election, 584 students voted for one or the
2.2 Solving Word Problems
Word Problems Worksheet (Day 2)
1.
The first stage of a rocket burns 28 seconds longer than the second stage. If
the total burning time for both stages is 152 seconds, how long does each
stage burn?
Possible Solution:
Let x secon
Unit 1 Lesson 5
2.5 Formulas and Their Applications
When we work with a formula, we usually have an equation with more than one variable.
Sometimes, we can make our work easier by rearranging a formula before substituting values.
For example, in the formu
Unit 2 Lesson 6
2.2 Solving Word Problems
SOLVING WORD PROBLEMS
1.
2.
3.
4.
Read the ENTIRE problem. What is being asked?
What is being asked? State a variable to represent the unknown(s), including any units.
Write an algebraic equation to represent the
2.1
Unit 1 Lesson 4
2.1 Algebraic Expressions
Variable: A letter that represents one or more numbers
ex in the expression 2x + 3, the variable is
ex in the expression 2xy, the variables are
and
Constant: The numerical part(s) of an algebraic expression
ex
1.5
Simple Arithmetic Average
A simple arithmetic average or arithmetic average or mean is the sum of all the terms in a data set
divided by the number of terms.
Simple Average
Sum of all Values
Total Number of Items
Ex 1 A street performer earns the fol
2.2
Unit 1 - Lesson 5
2.2 Solving Equations
Principles of Equations
Performing the same operation on both sides of an equation will result in an equivalent equation.
ex Solve for x: 3 + x = 15
ex Solve the following equation.
7x = 35
ex Solve the followin
1.1, 1.3
Unit 1 Lesson 1 - 1.1 Rounding and 1.3 Fractions
Place Value of Decimal Numbers
Round 241.482 to the nearest ones or unit or whole number .
241.482
Round 241.482 to the nearest tenth or 1 decimal place.
241.482
Round 34,578 to the nearest hundr
1.4
Unit 1 Lesson 2
1.4 Order of Operations
Order of Operations (BEDMAS)
Brackets: Work inside the brackets first following EDMAS
Exponents (also called powers)
Division and
in order, from left to right
Multiplication
Addition and
in order, from left to r
Prof. M.Vaisfeld
THE BINOMIAL PROBABILITY DISTRIBUTION
(see handout #6a)
6/8/2008
Binomial Probability Experiment is an experiment that is made up of repeated trials
of the same basic experimental event. Each trial has only two possible outcomes
(usually
THE SIMPLE RANDOM SAMPLE
01/27/08
DEFINITION. Statistical inference is a procedure by which we reach a conclusion
about a population on the basis of the information contained in a sample that has
been drawn from that population. [A sample is a subset, or
Template binomial problems_stud.doc / See handout #6a
03/19/10
Problem #11. Find the expected value of and the variance 2 for the following random
variable x.
i
1
2
3
4
5
xi
9
12
15
18
21
P(xi)
0.14
0.22
0.36
0.18
0.1
xi*P(xi)
The mean =
xi2
xi2*P(xi)
=
T
St. Johns University
Department of Mathematics and Computer Science
Course MTH 1210
SYLLABUS (Spring 2010)
TEXT: BIOSTATISTICS (A foundation for Analysis in the Health Sciences),
9th edition, by Wayne W. Daniel; John Wiley & Sons, Inc. (ISBN # 978 0 - 470
THE SUMMATION NOTATION
01/31/10
In statistics and in other math courses the Greek capital letter (sigma) is used as a
summation symbol which indicates the sum of related terms. For example,
5
i = 1 + 2 + 3 + 4 + 5 = 15
i =1
means the sum of the integers
SIMPLE RANDOM SAMPLING_stud.doc
Jan 2510
THE SIMPLE RANDOM SAMPLE
DEFINITION. Statistical inference is a procedure by which we reach a conclusion
about a population on the basis of the information contained in a sample that has
been drawn from that popula
Sampling distribution of sample means and t distribution.xls
This sheet illustrates the example
on the pg. 2 of the handout #9
Prof. M.Vaisfeld
May 9'09
Table 1. The Samples of Size n = 2 Derived from the Population cfw_2, 4, 6, 8, 10 of Size N = 5.
Sampl
Problems for handout_14.doc
/ See Biostatistics textbook, pg. 189
Use the program Determination of sample size.xls, sheet 1 and handout_14 to solve the
following problems.
6.7.2. The director of the rabies control section in a city health department wishe
INTRODUCTION TO STATISTICS
Jan 2509
[1] BIOSTATISTICS. A foundation for Analysis in the Health Sciences, eights
edition, by Wayne W. Daniel; John Wiley & Sons, Inc. ISBN: 0-471-45654-3
WIE ISBN: 0-471-45232-7
[2] Elementary Statistics by Robert Johnson, 3
MTH 1210 Biostatistics
Apr 2809
Homework #14
(Hypothesis Testing for the Difference between Two Population Means)
See the handouts #15, 15a, 15b.
Use
the
MS
Excel
program
Hypothesis_Testing_for_ the_Difference_between_Two_Population_Means.xls.
Solving the
MTH 1210 Biostatistics
Apr 2110
Homework #13 (students version)
(Hypothesis Testing)
See the handouts #15, 15a, 15b. Use the MS Excel program
Hypothesis_Testing_for_the_Mean.xls or the calculator TI-83plus (or equivalent); see
also other problems in the t
MTH 1210 Biostatistics
Apr 1909
Homework #12
(Sampling Distribution of the Difference between Two Sample Proportions)
Use the handout #13 and MS Excel program Three_distributions.xls, sheet 3 (see the textbook
pg. 151)
5.6.1. According to the 2000 US Cens
MTH 1210 Biostatistics
Apr 1809
Homework #11 (answers)
(Sampling Distribution of the Sample Proportion)
Use the handout #12 and MS Excel program Three_distributions.xls, sheet 3 (see the textbook
pgs 148, 149, 183)
Below:
is a sample proportion for an ar
Course MTH 1210
May 1709
Homework #10 (answers)
(Sampling Distribution of the Differences between Two Sample means)
Use handout #11 and MS Excel programs: Three_distributions.xls, sheet 3, Sampling
distribution
of
sample
means
and
t
distribution.xls,
shee
Course MTH 1210
May 1709
Homework #9 (answers)
(Sampling Distribution of the Differences between Two Sample means)
Use handout #11 and MS Excel programs: Three_distributions.xls, sheet 3, Sampling
distribution
of
sample
means
and
t
distribution.xls,
sheet
Course MTH 1210
Apr 1609
Homework #8 (answers)
(Confidence intervals for a population mean with t statistic)
Use MS Excel program Sampling distribution of sample means.xls, sheet 3 (block of cells I6
L9) and the formula for the confidence interval (see H
Course MTH 1210
Homework #7 (answers)
(Confidence intervals)
Apr 1609
Use MS Excel program Three_distributions.xls, sheet 3 and the formula for the confidence
interval [see handout #10]
_
x* z(1 /2) x_mean
or
_
_
*
[ x z(1 /2)x_mean , x + z(1 /2)x_mean ]