Question

10. What is the class mark of 250-275​

Answer 1

Answer:

$lower \: limit \: = 250 </p><p>upper \: limit = 275</p><p>class \: width \: = 275 - 250 = 25</p><p>class \: mark = \frac{250 + 275}{2} = \frac{525}{2} = 262.5</p><p> = 262.5$

Answer 2

Step-by-step explanation:

class mark = upper limit + lower limit / 2 = 250+275 / 2 = 525 / 2 == 262•5 .