using intervals of width 10, how many intervals are needed for this graph to be drawn correctly?\n5 or…

using intervals of width 10, how many intervals are needed for this graph to be drawn correctly?\n5 or fewer\nbetween 6 and 10\nbetween 11 and 19\n25 or more\ndone\nfast pax\nnumber of employees: 12\naverage salary: $39,500\nfast pax employee salaries

using intervals of width 10, how many intervals are needed for this graph to be drawn correctly?\n5 or fewer\nbetween 6 and 10\nbetween 11 and 19\n25 or more\ndone\nfast pax\nnumber of employees: 12\naverage salary: $39,500\nfast pax employee salaries

Answer

Explanation:

Step1: Identify the range of data

The salary ranges shown are from 0 - 299 (in thousands). The maximum value is 299 and the minimum is 0. The range $R=299 - 0=299$.

Step2: Calculate the number of intervals

We use the formula $n=\frac{R}{w}$, where $w = 10$ is the width of the interval. So $n=\frac{299}{10}=29.9$. Since the number of intervals must be a whole - number and we need to cover the entire range, we round up to the next whole number. So $n = 30$.

Answer:

25 or more