Question: 2.1 Crickets make their chirping sound by sliding one wing cover very rapidly back and forth over the other. Biologists have long been aware that there is a linear relationship between temperature and the frequency with which a cricket chirps, although the slope and y-intercept of the relationship varies from species to species. The following table lists 15 frequency-temperature observations recorded for the striped ground cricket, Nemobius fasciatus fasciatus (140). Plot these data and find the equation of the least squares line, y = a + fix. Suppose a cricket of this species is observed to chirp 18 times per second. What would be the estimated temperature?