1.PERCENT ● DEFINITION OF PERCENT - Percent means parts per 100 The symbol is % Example: 25% means 25 per 100 ● CONVERSION TECHNIQUES - ✔Changing percent to decimal Change a percent to a decimal. Move the decimal point two places to the left. In a percent‚ the decimal point would come at the end of the last number (for 75%‚ envision that it looks like 75.) Examples: 75% converts to .75 40% converts to .40 3.1% converts to .031 ✔Changing decimal or whole number to percent Change a decimal
Premium Elementary arithmetic Number Decimal
Question 1-CXC Past Paper Questions: 1989-2011 May 1989 (a) Find the exact value of (4⅘÷2⅔)- (1⅓) 2 (5 marks)(b) Write your answer to part (a) as a decimal correct to 2 significant figures. (2marks)(c) A sum of money is to be divided among A‚B‚ AND C in the ratio of 2:3:5. Thelargest share amounts to $1200.Calculate: (i) the total sum of money to be shared(ii) A’s share(iii) the percentage of the total amount that Breceives (5 marks) May 1990 Calculators‚ slide rules and mathematical tables
Premium Arithmetic Ratio United States dollar
Lincoln School Mathematics Department IB Math Standard-1 Ms. Fabiola Medrano Name: ______________ Date: May 2‚ 2013 Total marks: 50 marks Marks obtained: _____ Score: ______ Quiz 4.2 (Descriptive Statistics II) General Instructions: Answer each of the following questions on the space provided. You must show ALL your work and IN PEN to earn full credit. 1. The following table gives the examination grades for 120 students. Grade Cumulative frequency 1 9 9 2 25
Free Arithmetic mean Median Standard deviation
DESCRIPTIVE STATISTICS & REGRESSION 1. In general‚ a …………… is a number describing some aspect of a population. a. Sample. b. Parameter. c. Inference. d. Correction factor. 2. a. b. c. d. A sample quantity that serves to estimate an unknown parameter from a population is called: An equivalence. An estimator. An inference. An hypothesis test. 3. A sample may be drawn to: a. Save needless waste of time‚ money‚ and effort. b. Discover facts about a population. c. Make inferences about a parameter
Premium Arithmetic mean Standard deviation Median
The closest movie theatre is 2 miles from here. • Age of executive in Fortune 500 companies: Quantitative - Discrete‚ The age of executive in Fortune 500 companies is 25. • Number of competing computer spreadsheet software packages: Quantitative – Discrete‚ there are 4 competing computer spreadsheet packages EXERCISE 2 Fifty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Part-time Student Course
Premium Arithmetic mean Statistics Fortune 500
ARITHMETIC LOGIC UNIT Submitted By‚ M.GOVINDHASAMY. K.GOWTHAM. K.A.GOWTHAMRAJ. ARITHMETIC LOGIC UNIT AIM: To verify the Function table of 4 bit ALU. APPARATUS REQUIRED:
Premium
be used? Mean- Works good when it comes to test scores Median- should be used when describing something like average income. Mode= is good is you want to see what is you best seeing product in a store situation. 2. Last year‚ 12 employees from a computer company retired. Their ages at retirement are listed below.First‚ create a stem plot for the data. Next‚ find the mean retirement age. Round to the nearest year. 55 77 64 77 69 63 62 64 85 64 56 59 8 5 7 77 6 234449 5
Free Arithmetic mean Median Mode
1 “Arithmetic vs. Geometric Means: Empirical Evidence and Theoretical Issues” by Jay B. Abrams‚ ASA‚ CPA‚ MBA Copyright 1996 There has been a flurry of articles about the relative merits of using the arithmetic mean (AM) versus the geometric mean (GM). The Ibbotson SBBI Yearbook took the first position that the arithmetic mean is the correct mean to use in valuation. Allyn Joyce’s June 1995 BVR article initiated arguments for the GM as the correct mean. The previous articles have centered
Premium Arithmetic mean Standard deviation
Section: Arithmetic Reasoning 1) At Joe’s Restaurant‚ one-fourth of the patrons are male and one-fifth of the patrons are from out of town. What proportion would you expect to be male and out of town? 1/5 1/10 1/20 1/25 1/50 2) There are 112 male and 78 females working at a hospital. What percentage of the hospitals workforce is female? 22% 32% 38% 41% 78% 3) What is the estimated product when 620 and 374 are rounded to the nearest hundred
Premium Standard deviation Arithmetic mean Mathematics
Guessing the Bounce Plate Affect Abstract The goal behind this experiment was to estimate the distance a ball would travel after it falls a certain distance and bounces off a metal plate which has an angle of 45 degrees. To find this we had to take the basic equations for kinematics which are (1/2)at2=x and v=v0+at and combine them to make an equation that will help us solve for the distance the ball will travel after hitting the bounce plate. The equation came out to be R=g*(sqrt(2)/sqrt(g))*(sqrt(H)*sqrt(h))
Premium Arithmetic mean Statistics Standard deviation