Mathematics
Mathematics, 08.02.2021 18:40, wolfgirl2431

An art dealer is trying to determine whether the age of a painting plays a significant role in its price at auction. They collect the sale data for 20 paintings, including the painter, the title of the painting, the age of the painting at auction, and the sale at auction (in millions $). The data is provided below. Use Excel to calculate the correlation coefficient r between the year and price data sets, rounding to two decimal places. Artist Title Age at auction (in years) Price sold (in million $)Peter Paul Rubens Massacre of the Innocents 391 76.7Roy Lichtenstein Nurse 51 95.4Francis Bacon Triptych, 1976 32 86.3Pablo Picasso Les Noces de Pierrette 84 49.3Jasper Johns False Start 47 80Vincent van Gogh A Wheatfield with Cypresses 104 57Pablo Picasso Yo, Picasso 88 47.8Andy Warhol Turquoise Marilyn 43 80Titian Portrait of Alfonso d'Avalos 470 70Mark Rothko Orange, Red, Yellow 51 86.9

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