ace6112
28.06.2019 •
Mathematics
Which of these pairs of events are dependent? a. you flip a coin and get tails. you flip it a second time and get heads.b. you pull your friend's name out of a hat that holds 20 different names, replacename, then draw out your friend's name again.c. you spin a spinner divided into five equal parts and is numbered 1-5. you get a 3 on the first spin, and then spin again and get a 2 on the second spin.d. you remove a black sock from a drawer without looking, then remove another blacksock.
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Ответ:
d
Step-by-step explanation:
a, b, and c are independent, because they don't necessarily affect the probability of each other.
Ответ:
k = 29 i think tho
5k - 3 + 9 + k = 180
6k + 6 = 180
6k = 174
k = 29