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Mathematics, 20.02.2020 20:05, anastasialong
The proportion of students who own a cell phone on college campuses across the country has increased tremendously over the past few years. It is estimated that approximately 95% of students now own a cell phone. Twenty five students are to be selected at random from a large university. Assume that the proportion of students who own a cell phone at this university is the same as nationwide. Let X = the number of students in the sample of 25 who own a cell phone.
What is the standard deviation of the number of students who own a cell phone in simple random samples of 25 students?
a. 1.0897
b. 0.0475
c. 1.1875
d. 1.35
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Answers: 3
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Mathematics, 21.06.2019 16:30, stefancvorovic1
The equation of a circle is (x - 3)2 + (y - 7)2 = 25. determine the length of the radius. 4 25 12.5 5 write the standard equation of the circle with center (2, 3) and a diameter of 12. (x - 2)2 + (y - 3)2 = 36 (x + 2)2 + (y + 3)2 = 12 (x - 2)2 + (y - 3)2 = 6 (x - 3)2 + (y - 2)2 = 36 the equation of a circle is (x + 3)2 + (y + 7)2 = 25. where is (3, 4) located in relation to the circle? on the circle in the interior of the circle in the exterior of the circle at the center of the circle
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Mathematics, 21.06.2019 18:30, nikidastevens36
Idonโt understand! use slope intercept form to solve: through: (2,5) slope= undefined
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