Florida International University
Business Statistics STA 2023
Ms. Laura Reisert Instructor
: Back to Menu :
Chapter 4-B Supplementary Exercises
1. If X is a binomial random variable with n = 20 and p = .40, find:
a. The expected value and variance of X
b.
Florida International University
Business Statistics STA 2023
Ms. Laura Reisert Instructor
: Back to Menu :
Chapter 5-B Supplelmentary Exercises
1. At one company, the mean amount contributed to a charity drive per employee
during a given year was $37.60.
As usually up to 5 points will be assigned for the correct solution: 1. Suppose x is a normally distributed random variable with = 60,000 and = 2500. Find P(x > 57,500). A) .1587 B) .2266 C) .7266 D) .8413 2. Suppose x is a normally distributed ran
Name
Date
Lesson 5 Reteach
Round to the Nearest Hundred
EXAMPLE
Use a place-value chart to help you round numbers.
Round 7,485 to the nearest hundred.
Thousands Hundreds
7
Tens
Ones
8
5
4
To round to the nearest hundred, look at the tens place.
The number
HANDOUT CHEAT SHEET
Normal Distribution
1X] Human body temperatures may approximately follow normal dist. with a mean of 98.20F and SD of 0.62F.
Find prob. that a random selected human has a body temperature.
A) Between 97.50F and 99.50F
B) At most 96.00F
EXAM 1:
An investigator is interested in the age, gender, nationality, marital status, career path, # of credits completed, and GPA of all students at U university.
She randomly selects four students from U university and records the following data:
Stude
STA 2023
REVIEW II (not all inclusive)
1. True/False
_The standard deviation of the sample mean is always equal to the standard deviation
of the population.
_The number of defective vending machines on a college campus is an example of a
continuous random
Florida International University
Business Statistics STA 2023
Ms. Laura Reisert Instructor
: Back to Menu :
Chapter 4-A Supplementary Exercises
1. Suppose the probability of a student passing this course for the first time is .90. Three
students who have
Florida International University
Business Statistics STA 2023
Ms. Laura Reisert Instructor
: Back to Menu :
Chapter 4-C Supplelmentary Exercises
1. A machine used to regulate the amount of dye dispensed for mixing shades of
paint can be set so that it dis
STATISTICS FORMULAS
Probability
R = H-L P(A) + P(A C) = 1
ml P(AU B) = P(A) + 13(3) — P(AﬂB)
ML = 2 P(AnB) = P(A) P(B|A) = 9(3) P(A|B)
, P(A|B) = M, where 12(5) #0.“ '
2X. P(B)
—E.n1 1
II
General Discrete Distribution
2
n p = E(x) = }{p(X)
n n zxi - a
March 17, 2016
QMB2100
MW 11 Am
Tesla Motors
Model S
Team Alpha
Bryan Brito
Alondra Curtis
Anthony Falcon
Michaelia Desilva
Brichell Villa
March 17, 2016
QMB2100
MW 11 Am
Executive Summary
This paper is a statistical analysis of Tesla Motors in comparison
March 17, 2016
QMB2100
MW 11 Am
Tesla Motors
Model S
Team Alpha
Bryan Brito
Alondra Curtis
Anthony Falcon
Michaelia Desilva
Brichell Villa
March 17, 2016
QMB2100
MW 11 Am
Executive Summary
This paper is a statistical analysis of Tesla Motors in comparison
March 17, 2016
QMB2100
MW 11 Am
Tesla Motors
Model S
Team Alpha
Bryan Brito
Alondra Curtis
Anthony Falcon
Michaelia Desilva
Brichell Villa
March 17, 2016
QMB2100
MW 11 Am
Executive Summary
This paper is a statistical analysis of Tesla Motors in comparison
FIU / Summer 2014
COURSE:
Economics
STA 2023, Section U01A, Statistics for Business and
INSTRUCTOR:
Eric Philias
OFFICE HOURS:
TH-TR 2:00 - 2:30 in DM 413B
E-mail address :
[email protected]
Class Time:
T-R 2:40-6:00
Text book:Statistics for Business and E
STA2023:FormulasforExam1
x=
x
n
median=Themidpointoftheobservationswhentheyareorderedfromsmallesttolargest
Range=MaxMin
s
(x
x)2
n 1
ChebychevsRuleforbellshapeddatasets:
Atleast3/4ofthedatafallswithin2standarddeviationsofthemean
Atleast8/9ofthedatafall
Solutions to Practice Questions for Exam 3
1. A life insurance salesman sells on the average 3 life insurance policies per week. Assume
that the number of life insurance policies sold per week can be approximated by a
Poisson probability distribution.
a.
Practice Questions for Exam 3
1. A life insurance salesman sells on the average 3 life insurance policies per week. Assume that
the number of life insurance policies sold per week can be approximated by a Poisson
probability distribution.
a. Find the prob
Ratio Analysis
This document will show the difference in liquidity and profitability in Best Buy and
Amazon. To begin this ratio analysis we begin by looking at Best Buys and its top competitor
Amazons current and quick ratios. For Best Buy the current ra