inspectors-recorded-the-number-of-paint-scratches-found-on-a-sample-of-new-cars-

Question

Inspectors recorded the number of paint scratches found on a sample of new cars. The table below shows the number of scratches and the number of cars with that count. Find the sample mean and sample standard deviation for the number of scratches per car.

Table showing the number of paint scratches on new cars and the corresponding number of cars for each scratch count.

Accepted Answer

$x ˉ equals 1.8$

$s almost equals 1.3$

Answer

$x ˉ equals 1.8$

$s almost equals 1.3$

Answer

$x ˉ equals 1.8$

$s almost equals 1.3$

Answer

$x ˉ equals 1.8$

$s almost equals 1.3$