Warm-up 2.4 (Day 2) Sketch the bar graph and complete 1-3.

Slides:



Advertisements
Similar presentations
STUDENTS WILL DEMONSTRATE UNDERSTANDING OF THE CALCULATION OF STANDARD DEVIATION AND CONSTRUCTION OF A BELL CURVE Standard Deviation & The Bell Curve.
Advertisements

Chapter 6: The Standard Deviation as a Ruler and the Normal Model
The Normal Curve Z Scores, T Scores, and Skewness.
Did you know ACT and SAT Score are normally distributed?
14.4 The Normal Distribution
Warm-up 2.5 The Normal Distribution Find the missing midpoint values, then find mean, median and standard deviation.
Explaining the Normal Distribution
Ch 11 – Probability & Statistics
Density Curves and the Normal Distribution
What is statistics? STATISTICS BOOT CAMP Study of the collection, organization, analysis, and interpretation of data Help us see what the unaided eye misses.
The Normal Distribution The “Bell Curve” The “Normal Curve”
Copyright © 2013, 2009, and 2007, Pearson Education, Inc. 1 PROBABILITIES FOR CONTINUOUS RANDOM VARIABLES THE NORMAL DISTRIBUTION CHAPTER 8_B.
Chapter 13 Section 7 – Slide 1 Copyright © 2009 Pearson Education, Inc. AND.
Warm-up Day 1 of Ch.1 and Ch. 2 Review Mean: _____ St. Dev.:____ Median: ____.
2.5 Normal Distribution SWBAT calculate areas under a standard normal curve in writing by converting between values and z- scores using a GCD or Table.
Probability and Samples
Copyright © 2010 Pearson Education, Inc. Chapter 6 The Standard Deviation as a Ruler and the Normal Model.
+ Warm Up The graph below shows cumulative proportions plotted against GPA for a large public high school. What is the median GPA? a) 0.8b) 2.0c) 2.4d)
The future is not come yet and the past is gone. Uphold our loving kindness at this instant, and be committed to our duties and responsibilities right.
Aim: what is the normal distribution? Do Now: Two sets of data given Find the mean.
2.1 Density Curves and the Normal Distribution.  Differentiate between a density curve and a histogram  Understand where mean and median lie on curves.
The Normal Distribution Chapter 6. Outline 6-1Introduction 6-2Properties of a Normal Distribution 6-3The Standard Normal Distribution 6-4Applications.
Slide 6-1 Copyright © 2004 Pearson Education, Inc.
Warm-up 2.3 Measures of Center and Spread Sketch out a graph that would be the data if you collected pennies from everyone in the class and recorded the.
AP Statistics Chapter 2 Notes. Measures of Relative Standing Percentiles The percent of data that lies at or below a particular value. e.g. standardized.
Warm-up Ch. 2 Review Day 2 Fill in the table below using the data on IQ scores. Remember Chebyshev’s Rule: and use the Rule or Normalcdf for.
A tour of fundamental statistics introducing Basic Statistics.
Chapter 6 The Standard Deviation as a Ruler and the Normal Model Math2200.
Warm-up 2.3 Measures of Center and Spread NMinQ1MedianQ3Max No Caffeine Low Caffeine High Caffeine a) Describe the.
Normal Distributions Remember rolling a 6 sided dice and tracking the results This is a uniform distribution (with certain characteristics)
Introduction to Statistics Chapter 6 Feb 11-16, 2010 Classes #8-9
Warm-up 2.4 Summary Statistics 1.The following is an cumulative percent of the number of ounces of alcohol (one ounce is about 30 milliliters) consumed.
AP Statistics HW: p.83 #1, 4, 6, 8 Obj: to understand density functions Do Now: Use your calculator to make a histogram for the following data on the height.
Chapter 2 Modeling Distributions of Data Objectives SWBAT: 1)Find and interpret the percentile of an individual value within a distribution of data. 2)Find.
Solve the following equations for x. Show work! Round to 2 decimal places Keith has $7200 to invest for 5 years compounded continuously.
Chapter 9 – The Normal Distribution Math 22 Introductory Statistics.
DO NOW1/29/14 Use the gas price data to answer the following questions. {$4.79, $4.60, $4.75, $4.66, $4.60} 1.Find the mean of the data (hint: average)
5-Minute Check on Activity 7-9 Click the mouse button or press the Space Bar to display the answers. 1.What population parameter is a measure of spread?
September 13, 2011 At the end of today, you will be able to: - Make a graph representation of real life situations and predict results - Use Slope Intercept.
1 Standard Normal Distribution Curve Standard Score.
STATISTICS Chapter 2 and and 2.2: Review of Basic Statistics Topics covered today:  Mean, Median, Mode  5 number summary and box plot  Interquartile.
Density Curves & Normal Distributions Textbook Section 2.2.
Describing Data Week 1 The W’s (Where do the Numbers come from?) Who: Who was measured? By Whom: Who did the measuring What: What was measured? Where:
THE NORMAL DISTRIBUTION
15.5 The Normal Distribution. A frequency polygon can be replaced by a smooth curve A data set that is normally distributed is called a normal curve.
Copyright © 2007 Pearson Education, Inc. Publishing as Pearson Addison-Wesley Slide 6- 1.
Chapter 2: Modeling Distributions of Data
Modeling Distributions of Data
Entry Task Chapter 2: Describing Location in a Distribution
Chapter 2: Modeling Distributions of Data
The Standard Deviation as a Ruler and the Normal Model
Z-scores & Shifting Data
Describing Location in a Distribution
Chapter 2: Modeling Distributions of Data
Warm-up We are going to collect some data and determine if it is “normal” Roll each pair of dice 10 times and record the SUM of the two digits in your.
The normal distribution
Section 9.4: Normal Distributions
Aim: what is the normal distribution?
7-7 Statistics The Normal Curve.
Chapter 2: Modeling Distributions of Data
2.2 Normal Distributions Normal Curves: symmetric, single-peaked, bell- shaped. and median are the same. Size of the will affect the spread of.
Click the mouse button or press the Space Bar to display the answers.
Chapter 3 Modeling Distributions of Data
Chapter 3: Modeling Distributions of Data
pencil, red pen, highlighter, GP notebook, graphing calculator
Chapter 2: Modeling Distributions of Data
Warm Up 4/30 What are you thankful for?
pencil, red pen, highlighter, GP notebook, graphing calculator
Mean and Median.
WarmUp A-F: put at top of today’s assignment on p
Presentation transcript:

Warm-up 2.4 (Day 2) Sketch the bar graph and complete 1-3.

2.4 H.W. Answers #53 and 54 #53 a. The median, where 50% of the data lies, is below $0.25. b. Q1 (The 25% mark) is around $0.10. Q3 (The 75% mark) is around $0.70. c. The data is definitely skewed to the right. The majority of the students have less than a quarter and then the percentiles go up very slowly until it finally reaches $2.75. d. Since the data is skewed it can not be a normal distribution.

2.4 H.W.#54

Student of the day! Block 4

Student of the day! Block 5

Student of the day! Block 6

Recentered or Rescaled Data? 1.Converting data from lbs. to kgs.. 2. Converting data from U.S. dollars to Mexican pesos. (Suppose $1 = 9.4 Mexican pesos) 3. Adding a constant c to each value of the data: x 1, x 2, x 3, x 4, and x 5.

Complete the worksheet comparing weekly payrolls of Mooseburgers and McTofu Think about why the mean is not always a good description of the center of data? You will be given 15 minutes to complete the sheet and then we will be going over the answers. I will check the completion once the 15 minutes are up for a participation grade. Keep this sheet with your notes that you took today

2.4 Cummulative Relative Frequency Pg. 78

2.5 Normal Distribution Where do you see it? Standardized test results, probability, certain data collection from a large population.

More on Bell Curve

The 68 – Rule

Practice Reading the Bell Curve 1) What % of the data is below +1 ? 2) What % of the data is located between the -2 and -1 ?

Solving Problems with Normal Distribution For Normal Distribution Problem, always draw the bell curve and label the values of mean and standard deviations.

Another Normal Distribution Problem

H.W. Assignment Mooseburger McTofu worksheet Chance for a H.W. Pass ( worth 20 pts = 1 day of a h.w. check) Download onto your TI-83, TI-83 Plus or TI-84 the program Ctlghelp. The first 3 from each block that downloads the program AND can tell me how to transfer the program to another calculator gets a H.W. pass. **** See me tomorrow morning before 7:55, during 2 nd Block (get permission…I might be in the vault making copies), or during 7 th block. Just be one of the first 3!

Histogram Worksheet Answers