Question 6
The Student Council of Woodlands Middle School is planning a field
trip. They polled randomly selected teachers and students and asked
what they want to eat for lunch. The results are shown in the tables
below,
Which of the following statements is true?
Pizza
Burgers
Total
57.5% of the students polled prefer pizza,
Students
23
17
40
Teachers
6
4
10
57.5% of the people polled who prefer
pizza are students,
Pizza
Burgers
Total
57.5% of the people polled are students,
Students
57.596
42.596
100%
Teachers
60%
4096
10096
57.5% of the people polled prefer pizza

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

Television sizes are based on the length of the diagonal of the television's rectangular screen. so, for example, a 70-inch television is a television having a diagonal screen length of 70 inches. if a 70 inch television's diagonal forms a 29°angle with the base of the screen, what is the vertical height (1) of the screen to the nearest inch? 70 inhin

The bottom of a slide at the playground is 6 feet from the base of the play set. the length of the slide is 10 feet. how tall is the slide. 11.66 feet 10 feet 6 feet 8 feet