Question

the lifetimes of 400 light-bulbs were found to the nearest hour.the result were recorded as follows. lifetime(hour):0-199 200-399 400-599 600-799 800-999 1000-1199 1200-1399. frequency :143 97 64 51 14 14 17​

Answer 1

Answer:

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Step-by-step explanation:

ndxneodndhdmdjfjdxkslsnxkwenxiem.he2bocpugldugkklljs0000000plffifio