M310 Descriptive Statistics Basics Display Data p DSB1 M310 Descriptive Statistics Basics Display Data p DSB1 M310 Descriptive Statistics Basics Display Data p DSB1 M310 Descriptive Statistics Basics Display Data p DSB1 We use graphs to communicate data— pictographs, pie charts, bar graphs, line graphs, scatter diagrams.... The most common graphs are used to show how many...1. The PICTOGRAPH is perhaps the most fun since it offers a creative opportunity in the choice of symbol.For example, in charting the popularity of songs I chose the symbol *....Notice the A pictograph FAVORITE SONGS OF 40 KINDERGARTNERS ³ TITLE is a special If You’re Happy (and)* * * * * * * * and type of Three Blind Mice* * *LEGEND Bar graph. œ Old MacDonald* * * * – The Hokey Pokey* * * * * (Each * represents 2 votes)2. Picto-graph the cookie drive: Mr. Jones' class sold 150 boxes; Ms. Smith's, 180; M. Durite's, 220. ,Would a pictograph be appropriate for displaying the following sets of data? ( Hint: ask yourself how? ) , YYYYES NNNNO Ages, in years, of members of a Bonsai class: 32, 21, 92, 26, 37, 48, 72, 41, 32, 16, 37, 48 YYYYES NNNNO Number of visits to the dentist for 20 kindergartners: 0,0,0,0,0,0,0,0,1,1,1,1,1,2,2,3,4,5,7,9YYYYES NNNNO Eye color (brown, blue, green, gray) of the 275 students at Elm St. School.On the NSAT (National Science Achievement Test),Ms. Smith's science class made the following scores: & Mr. Jones’ class earned these:69 73 74 74 77 79 80 85 73 70 98 83 75 7682 84 88 88 96 97 97 97 82 72 83 72 84 84 x x x3. Here is a LINE PLOT of Ms. x x x x x x x x x xx Ms. Smith’s classSmith's class scores R R RRRR R R R R RRRR R R R R RRRR R R R R RRRR R R R R RRRR R R R R RRRR R R R R RRRR R scores on NSAT 70 80 90 100 , Make a line plot of Mr. x ¶Jones' class scores R R RRRR R R R R RRRR R R R R RRRR R R R R RRRR R R R R RRRR R R R R RRRR R R R R RRRR R 70 80 90 1004. Ms. Smith’s class scores in Add Jones’ data to complete the back-to-back stem-and-leaf ¶a STEM----AND----LEAF diagram diagram below. Don’t forget labels and legend.are shown below.Scores of two 8th-grade classeson National Science Achievement TestScores of Ms. Smith’s 8th-graders on , the National Science Achievement Test Smith’s¶ Class , 6 9 9 6 Legend:¶ 7 3 4 4 Legend: 4 4 3 7 7 7 9 7 | 7 9 9 7 7 8 0 2 4 represents 4 2 0 8 8 8 8 scores of 8 8 8 9 77 & 79 9 9 6 7 7 7 7 6 9 Note: Four is considered too few classes when grouping data!So w e did NOT use ranges 70-79, 80-89, etc. To get more than 4classes, we used shorter ranges.M310 Descriptive Statistics Basics Display Data p DSB2 M310 Descriptive Statistics Basics Display Data p DSB2 M310 Descriptive Statistics Basics Display Data p DSB2 M310 Descriptive Statistics Basics Display Data p DSB2 Ms. Smith's science class made the following scores: & Mr. Jones' class earned these:69 73 74 74 77 79 80 85 73 70 98 83 75 7682 84 88 88 96 97 97 97 82 72 83 72 84 845. A FREQUENCY TABLE lists ranges of values for the data, and their frequencies— the number of data that fall in each range (class). . . . Classify the data in a combinedcombinedcombinedcombined frequency table (ie complete what was started below). (Use classes that correspond to the stem-and-leaf diagram above.) Don’t forget the title. , NumberScores on test of students 65-69 1 70-74 7 75-79 4 80-84 , 6. Show the combined data in a HISTOGRAM using classes which correspond to those in problem (5). USE A histogram uses adjacentadjacentadjacentadjacent rectangles on a Cartesian coordinate system to display data. theThe horizontal or x-axis displays the values of the data; the vertical or y-axis the frequencies. SPACE!! , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Discrete vs Continuous Data: Discrete vs Continuous Data: Discrete vs Continuous Data: Discrete vs Continuous Data: Histograms and Bar Graphs both show frequencies of …