Mathematics, 13.11.2019 06:31 madeleine1102
In a population of 120 voters in random town, suppose 40% will vote for phred for mayor. if you randomly sample 25 voters (without replacement) before the election, what’s the chance that the number in the sample who will vote for phred will be between 9 and 11 (i. e., within 4% of the true value)? do this using the exact (hypergeometric) and approximate (normal, with continuity correction) distributions.
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Mathematics, 21.06.2019 13:10
Identify whether the figure has plane symmetry, symmetry about an axis, or neither.
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Mathematics, 21.06.2019 14:00
The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.
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Mathematics, 21.06.2019 19:30
Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)
Answers: 1
Mathematics, 21.06.2019 20:30
Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?
Answers: 1
In a population of 120 voters in random town, suppose 40% will vote for phred for mayor. if you rand...
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