Trend Line line of best fit a that
Trend Line: line of best fit a __________ that close dots comes ______ to the ______ on a scatter plot. When drawing a trend line, ignore outliers any ______ (data points that are very different from the rest of the data). Explorations Workbook Pg 341 Joyce is training for a 10 K race. For some of her training runs, she records the distance she ran and how many minutes she ran. 1. The scatter plot represents tips earned (in dollars) and time worked (in hours). Based on a linear model of the data, which is the best prediction for the amount of tips earned in 5 hours of work? Make a scatter plot of Joyce’s running data (to the right). To draw a trend line, use a straight edge to draw a line that has about the same number of points above and below it. Ignore any outliers. Use your trend line to predict how long it would take Joyce to run 4. 5 miles. How well does your trend line fit the data? A. B. C. D. $2 $15 $23 $31
#25 Pre. Alg 8 Sem 2 Practice Exam V: B The graph shows the number of members that have been in Theatre club and the number of years after the club began. #26 Pre. Alg 8 Sem 2 Practice Exam Version B The scatter plot shows an individual’s age compared to their sitting height. What do the slope and y-intercept mean? #37 Pre. Alg 8 Sem 2 Practice Exam Version B Amy buys used books at different garage sales. Which graph shows the line of best fit for these data? A. The slope of 60 tells how much the sitting height increases for each 1 year increase in age. Based on the trend shown in the data, predict the year after which the club will have no members. A. B. C. D. 1 year 3 years 6 years 8 years The y-intercept is 50 cm and gives the sitting height when the age is 0 years. B. The slope of 2. 5 tells how much the sitting height increases for each 1 year increase in age. The y-intercept is 50 cm and gives the sitting height when the age is 0 years.
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