menga ushbu matematik masalani aniqlashning standart chetlanishini ko'rsating; kutubxonada aprel oyida olingan kitoblar soni bo'yicha tadqiqot o'tkaziladi, buning uchun o'sha oyning dastlabki o'n kunini hisobga olish kerak, birinchi kuni 35 ta kitob, ikkinchi kuni 47 ta kitob, uchinchi kuni 22 ta kitob, to'rtinchi kuni 15 ta kitob, beshinchi kuni 13 ta kitob, oltinchi kuni 28 ta kitob, yettinchi kuni 39 ta kitob, sakkizinchi kuni 41 ta kitob, to'qqizinchi kuni 12 ta kitob va o'ninchi kuni 19 ta kitob.
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