Mathematics, 27.03.2020 19:29 dkjfghdjk
Out of 40 students 60% carry a cell phone. What fraction of students carry a cell phone
Answers: 3
Mathematics, 21.06.2019 21:40, salinasroel22
In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.
Answers: 3
Out of 40 students 60% carry a cell phone. What fraction of students carry a cell phone...
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