22 Determina quale fra \( A, B \) e \( C \) è la misura meno precisa, se l'errore relativo di \( A \) è 0,0125 , l'errore relativo di \( B \) è 0,025 , mentre quello di \( C \) è 0,08 .

Suppose the correlation coefficient between a baby's weight and the number of coffee shops in Plumville is 0.87 . Which statement must be true? A. As the baby gains weight, the number of coffee shops tends to increase. B. Having more coffee shops around causes the baby to gain weight. C. As the baby gains weight, the number of coffee shops tends to decrease.

A set of data points has a line of best fit of \( y=2.5 x-1.5 \). What is the residual for the point \( (5,12) \) ? A. -1 B. 1 C. 11 D. 12

A data set consists of the following data points: \[ (2,4),(4,7),(5,12) \] The line of best fit has the equation \( y=2.5 x-1.5 \). What does this equation predict for a value of \( x=7 \) ? A. 19 B. 17.5 C. 16 D. 20.5

Calcúlese el estimador máximo-verosímil del parámetro \( \lambda \) la distribución de Poisson en muestras aleatorias simples de tamaño \( n \).

Which of these r -values represents the strongest correlation? A. -0.4 B. -0.7 C. -0.5 D. -0.6