Mathematics, 14.02.2022 02:10 kileykittykt8184
there are 10 boy and 10 girl in a group, 2 boys are to selected and 2 girl are to selected for the play, how many ways can they selected.
Answers: 1
Mathematics, 21.06.2019 13:00
Liesl grew 7/12 of a foot in one year. her little sister grew 1/3 of a foot during that same year. how much more did liesl grow than her little sister did
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Mathematics, 21.06.2019 18:30
School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?
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Mathematics, 21.06.2019 21:40
The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?
Answers: 2
there are 10 boy and 10 girl in a group, 2 boys are to selected and 2 girl are to selected for the p...
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