A math teacher had 3 boxes of calculators. There were 8 calculators in each box. The teacher gave an equal number of calculators to each of 4 classes. How many calculators did each class receive? A 7, because 3 + 8 − 4 = 7 B 6, because 3 × 8 ÷ 4 = 6 C 20, because 3 × 8 − 4 = 20 D 28, because 3 × 8 + 4 = 28

B

Step-by-step explanation:

b

step-by-step explanation:

calculate the scale factor as the ratio of corresponding sides, image to original, that is

scale factor = = = = 1

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.