Question

the table shows the number of students in each grade who had perfect attendance last quarter at west elementary school. what is the range for the data displayed in the table? a 35 b 42 c 45 d 51

Explanation:

Step1: Identify maximum value

The maximum value in the data set {20, 56, 42, 63, 70, 35, 42} is 70.

Step2: Identify minimum value

The minimum value in the data set is 20.

Step3: Calculate the range

The range is calculated by subtracting the minimum value from the maximum value. So, $70 - 20=50$. But there might be a mis - typing in the problem options. If we assume the correct way to calculate range for the given data, the formula for range $R = \text{Max}-\text{Min}$.

Answer:

There seems to be an error in the options provided as the correct range for the data set {20, 56, 42, 63, 70, 35, 42} is 50. If we have to choose the closest option, it might be assumed that there was a data - entry error and we consider the closest value among the given options. However, based on the correct calculation of range for the given data, the value should be 50. If we assume some tolerance or error in options, the closest value to 50 among the options is D. 51. So, D. 51.