Question

find the median of the following data class intervals is equal to 50-60 60-70 70-80 80-90 9900 frequency is equal to 12 14 8 6 10​

Answer 1

Answer:

69.28

Step-by-step explanation:

refer the attachment for description.

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Answer 2

The median of the data is 69.285

Step-by-step explanation:

class interval      frequency     cumulative frequency

50-60                     12                           12

60-70                      14                           26

70-80                        8                          34

80-90                        6                          40

90-100                      10                          50

now , here  

n= 50

therefore $\frac{n}{2}= \frac{50}{2}= 25$

using formula of median

$median = l+\left ( \frac{\frac{n}{2}-cf}{f}\times h \right )\\\\ = 60+ \left ( \frac{25-12}{14}\times 10\right )\\\\=60+ 9.285\\\\= 69.285$

hence , The median of the data is 69.285

#Learn more:

Find the highest four–digit number that is divisible by each of the number 12, 36, 25 and 60.

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