QUESTION IMAGE
Question
read the following description of a data set.
camilla is preparing for the national spelling bee and is following a strict study plan. to create the plan, she timed how long it had taken her to memorize several words.
camilla recorded the number of letters in each word, x, and how many minutes, y, it had taken her to memorize it.
the least squares regression line of this data set is:
y = 2.346x - 29.861
complete the following sentence:
the least squares regression line predicts that camilla would take additional minutes to memorize a word with an additional letter.
Step1: Comprender la ecuación de la recta de regresión
La ecuación de la recta de regresión lineal es \(y = mx + b\), donde \(m\) es la pendiente y \(b\) es la intersección con el eje \(y\). En la ecuación \(y = 2.346x-29.861\), \(m = 2.346\) y \(b=-29.861\).
Step2: Interpretar la pendiente
La pendiente \(m\) en una ecuación de regresión lineal \(y = mx + b\) representa el cambio en \(y\) (en este caso, el tiempo en minutos) por unidad de cambio en \(x\) (en este caso, el número de letras).
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\(2.346\)