Mavzu: 6-nazorat ishi Sinf: 10-a 1

SAVOLLAR VARAQASI


Algebra

Mavzu: 6-nazorat ishi
Sinf: 10-A

1. “4 ta otilgan o‘qdan 3 tasi nishonga tegdi” hodisasiga mos ifodalarni yig‘indi ko‘rinishida yozing.


A hodisa – birinchi otilgan o‘q nishonga tegdi.
B hodisa – ikkinchi otilgan o‘q nishonga tegdi.
C hodisa – uchinchi otilgan o‘q nishonga tegdi.
D hodisa – to‘rtinchi otilgan o‘q nishonga tegdi.
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2. Sotuv markazidagi 30 xil mahsulotlarga uchun aksiya e’lon qilindi. Bunda mahsulotlarning 5 tasiga 50 000 so‘m, 8 tasiga 40 000 so‘m, 7 tasiga 30 000 so‘m, 2 tasiga 100 000 so‘m va qolganlari yutuqsiz bo‘lishi belgilandi. Bitta mahsulotning 41 000 so‘mdan ko‘p bo‘lgan yutuq chiqish ehtimolini toping.
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3. Tasodifiy ravishda ikkita “KITOB”, “DAFTAR” so‘zlaridan bittadan harf tanlanadi. Ushbu so‘zlardan “OT” so‘zining olinishi ehtimolini toping.
A hodisa “KITOB” so‘zidan “O” harfi tanlanganini bildiruvchi hodisa bo‘lsin,
B hodisa “DAFTAR” so‘zidan “T” harfini tanlanganini bildiruvchi hodisa bo‘lsin.
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4. Yosh sanatkorlar uchun kasting e’lon qilindi. Kastinga 20 kishi tashrif buyurdi. Ularning 15 tasi xonanda. Tasodifiy tanlangan 7 nafar sanatkorlar orasidan 4 nafari xonanda bo‘lish ehtimolini toping. Javobni qisqarmaydigan kasr ko‘rinishida yozing.
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5. Doiraga beshburchak ichki chizilgan. Doiraga tasodifiy nuqta qo‘yilganda nuqtaning beshburchakka tushish ehtimolini toping. Beshburchakning yuzasi 12 ga, doiraning diametri esa d = 20 ga teng.
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