एक नगर में वायु में सल्फर डाई- ऑक्साइड क...

एक नगर में वायु में सल्फर डाई- ऑक्साइड का सांद्रण भाग प्रति मिलियन [parts per million (ppm) ] में ज्ञात करने के लिए एक अध्ययन किया गया । 30 दिनों के प्राप्त किए गए आंकड़ों ये है :
`{:(0.03,0.08,0.08,0.09,0.04,0.17),(0.16,0.05,0.02,0.06,0.18,0.20),(0.11,0.08,0.12,0.13,0.22,0.07),(0.08,0.01,0.10,0.06,0.09,0.18),(0.11,0.07,0.05,0.07,0.01,0.04):}`
(i) `0.00 - 0.04, 0.04 - 0.08` आदि का वर्ग अंतराल लेकर इन आंकड़ों की एक वर्गीकृत बारम्बारता बंटन सारणी बनाइए ।
(ii) सल्फर डाई- ऑक्साइड की सांद्रता कितने दिन 0.11 भाग प्रति मिलियन से अधिक रही ?

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