A survey of randomly-selected students on a campus of 1,000 students asked who preferred coffee to tea. The sample proportion is found to be 59%. Which statement is true ?
- more than 590 of all students must prefer coffee to tea
- the sample proportion must precisely represent the entire populations choice.
- fewer than 509 of all the students must prefer coffee to tea.
- the population proportion is not necessarily equal to the same proportion
x^2 + 18x + 74 = (x + 9)^2 - 81 + 74
= (x + 9)^2 - 7.
so q = -7.
-6 is the correct option from the above given options
the ratio of balloons to tables is 5: 2 and the constant variation is 5.
the equation is y=5x
r = 78539458390583095803458309458039485093485 or just 3