求英语数学大神翻译一道英文分布方面的数学题，并解答，谢谢。 10 randomly selected packets of crisps

Question

求英语数学大神翻译一道英文分布方面的数学题，并解答，谢谢。
10 randomly selected packets of crisps are put in a family pack.from a sample of 20 randomly selected family packets find the probability that no family packets will have more than 4 packets of ready salted.
a crisp manufacture produces ready salted and flayoured crisps,30％of the packets produced are ready salted,a random sample of 10 packets of crisps are taken 这个是题干

Answer 1

随机选择10包薯片放在家庭装。从20个随机选择的样本家庭包中找到不超过4包已经加盐的家庭包的可能性追问

a crisp manufacture produces ready salted and flayoured crisps,30％of the packets produced are ready salted,a random sample of 10 packets of crisps are taken 这个是题干

Answer 2

随机选择10包薯片放在家庭装。从20个随机选择的样本家庭包找到的可能性没有家庭包将超过4包准备好咸。追问

翻译软件出来的不对啊，好咸什么啊

Answer 3

我看不懂啊 。。。。