Organizing and Visualizing Data and Measures of Central Tendency.

Slides:



Advertisements
Similar presentations
15.2 Measures of Central Tendency Objectives:
Advertisements

Learn to find measures of variability. Box-and-whisker Plots.
SDAP1.1 Know various forms of display for data sets, including a stem-and-leaf plot or box-and-whisker plot; use the forms to display a single set of data.
MAT 142 Lecture Video Series. Measures of Central Tendency.
EXAMPLE 1 Speeds of Animals
Ms. Drake 7th grade Math Measures of Central Tendency Lesson 7 Box and Whisker Plots.
Page 86 – 87 #18 – 36 even, 37 – 42, 45 – 48, 56, 60 (22 pbs – 22 pts) Math Pacing Statistics - Displaying and Analyzing Data
Measures of Central Tendency. Objectives Calculate the mean of a set of data. Calculate the median of a set of data. Calculate the mode of a set of data.
Jeopardy Stem-and- Leaf Plot 2 Frequency Table1 Frequency Table 2
CONFIDENTIAL 1 Grade 8 Algebra1 Data Distributions.
How do I find measures of central tendency and dispersions?
REPRESENTATION OF DATA.
Measures of Central Tendencies Week # 2 1. Definitions Mean: or average The sum of a set of data divided by the number of data. (Do not round your answer.
3. Use the data below to make a stem-and-leaf plot.
Chapter 9 Statistics Section 9.1 Frequency Distributions; Measures of Central Tendency.
7.7 Statistics & Statistical Graphs p.445. What are measures of central tendency? How do you tell measures of central tendency apart? What is standard.
SECTION 1-7: ANALYZING AND DISPLAYING DATA Goal: Use statistical measures and data displays to represent data.
Objectives Describe the central tendency of a data set.
10/17/2015Mrs. McConaughy1 Exploring Data: Statistics & Statistical Graphs During this lesson, you will organize data by using tables and graphs.
Chapter 21 Basic Statistics.
Aim: Central Tendencies Course: Alg. 2 & Trig. Aim: How do we make sense out of data? - What’s the central issue? Do Now:
Do Now Find the mean, median, mode, and range of each data set and then state which measure of central tendency best represents the data. 1)2, 3, 3, 3,
7.7 Statistics and Statistical Graphs. Learning Targets  Students should be able to… Use measures of central tendency and measures of dispersion to describe.
#25-1 February 14, 2011 Find the unit rate for the given ratio: 1)141 books in 3 classes Find the mode of the given data 2)13, 18, 14, 18, 12 3) While.
Dot Plots and Frequency Tables CCGPS Coordinate Algebra Unit 4 Statistics.
Univariate Data Concerned with a single attribute or variable.
Splash Screen. Lesson Menu Five-Minute Check (over Lesson 8–3) Main Idea and Vocabulary Example 1:Display Data Using a Bar Graph Example 2:Display Data.
12.1 Measures of Central Tendency Objectives: Find the mean, median, and mode and range of a data set. Find or estimate the mean from a frequency table.
7.7 Statistics & Statistical Graphs p.445. An intro to Statistics Statistics – numerical values used to summarize & compare sets of data (such as ERA.
5.2 VARIABILITY Common Core Investigation 5.2. OBJECTIVE  Today I will compare two box-and- whisker plots and gain information from the data distributions.
Ms. Drake 7th grade Math Measures of Central Tendency Lesson 4 Frequency Tables and Stem and Leaf Plots.
What are the effects of outliers on statistical data?
MATH 110 Sec 14.2 Statistics-Measures of Central Tendency Practice Exercises Given the dataset:
Symbol Description It would be a good idea now to start looking at the symbols which will be part of your study of statistics.  The uppercase Greek letter.
Warm Up Simplify each expression
6-5 Describing Distributions I CAN describe the shape of data distributions of a dot plot. I CAN describe the shape of data distributions of a box-and-whisker.
Rates and Average Measures of Central Tendency LESSON 7POWER UP B PAGE41.
Finding Measures of Central Tendency with Graphs SOL 6.18 & 6.19.
WHAT IS STANDARD DEVIATION? MONA BEHROUZIAN MATH 10H.
Measures of Central Tendency and Measures of Dispersion.
Statistics and Data Analysis
Statistics 1. Constructing a Frequency Distribution 1.Choose either individual data points or four to eight evenly spaced intervals (if there are several.
Chapter 14 Statistics and Data Analysis. Data Analysis Chart Types Frequency Distribution.
1. What is the first step in finding the median in a set of data? Write the numbers in order from least to greatest. 2.Find the mean using this data: 0,
Unit 10-5 Central Tendency MEAN, MEDIAN, MODE, RANGE.
Data Descriptions.
Course Title: Statistics
Practice As part of a program to reducing smoking, a national organization ran an advertising campaign to convince people to quit or reduce their smoking.
Line Plots & Box-and-Whiskers Plots
Bellwork 1. Order the test scores from least to greatest: 89, 93, 79, 87, 91, 88, Find the median of the test scores. 79, 87, 88, 89, 91, 92, 93.
Measures of Central Tendency
NUMERICAL DESCRIPTIVE MEASURES
QUIZ Time : 90 minutes.
Central Tendency Central Tendency – measures of location for a distribution Mode – the commonly occurring number in a data set Median – the middle score.
11.3 Shapes of distributions
Measures of Central Tendency and Variation 8-1
Lesson 13.1 How do you find the probability of an event?
Box-and-Whisker Plots
Measures of Central Tendency
Main Idea and New Vocabulary
Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.
Creating Data Sets Central Tendencies Median Mode Range.
11.1 Find Measures of Central Tendency & Dispersion
14.2 Measures of Central Tendency
Warm-Up Define mean, median, mode, and range in your own words. Be ready to discuss.
3rd Nine Weeks Benchmark *graded **NO CURVE
Check Homework, Ask ?s.
Ch. 12 Vocabulary 9.) measure of central tendency 10.) outlier
ALGEBRA STATISTICS.
Warm Up Problem Kennedy ran a total of 6 miles over the course of 3 track practices. How many miles would Kennedy have run after 4 track practices? Solve.
Presentation transcript:

Organizing and Visualizing Data and Measures of Central Tendency

The final letter grades of students at a local college in Spanish are written below. AEBAADBAED EBEABCDAAB CEDABBDEAB Organize the given data into a frequency distribution.

The speeds, in miles per hour, of 20 randomly monitored cars on Interstate 20 near Winona, Arizona were as follows: Organize the given data into a frequency distribution. (Group the data into six intervals.)

The speeds, in miles per hour, of 40 randomly monitored cars on Interstate 40 near Winona, Arizona were as follows: Create a stem-and-leaf plot for the speed data

Formulas mean of ungrouped data (here x is the data point) mean of grouped data (here x is the midpoint of a group)

Miles run per week Number of weeks Tom Ball, an avid jogger, kept detailed records of the number of miles he ran per week during the past six months. The frequency distribution summarizes his records. Find the mean, median, and mode of the number of miles per week that Tom ran. Draw a box and whiskers plot of the data.