Help! A mf is timed!!! Mr. Sanchez surveyed classes to aid in planning the end-of-year party. For the first sample, Mr. Sanchez surveyed every third person on each first-period class roster. For the second sample, Mr. Sanchez surveyed his five honors math classes. Which statement about Mr. Sanchez’s samples is true?

End-of-Year Party Survey
Sample 1
Sample 2
Water Park
21
Water Park
36
Bowling/Arcade
36
Bowling/Arcade
28
Zoo
16
Zoo
24
Dance & Dinner
27
Dance & Dinner
12
Sample 1 is biased.
Sample 2 is biased.
Both samples are biased.
Neither sample is biased.

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

Find the area and perimeter of each composite figure. use 3.14 for π. round your answer to the nearest tenth. a square and a right triangle share a common side. image long description a 3-meter by 0.5-meter rectangle has triangles attached like wings to the 3-meter sides. the other two sides of both triangles measure 2.5 meters. the height of each triangle is 2 meters. a 6-inch by 4-inch rectangle has 2 half-circles attached like wings to the 6-inch sides. the radius of each half-circle is 3 inches. find the surface area and volume of each figure. use 3.14 for π. round your answer to the nearest tenth. a right circular cylinder has a base radius of 6 yards and a height of 20 yards. a rectangular prism has a base that is 9 centimeters long and 7 centimeters wide. the height is 2 centimeters. a rectangular prism has a base that measures 11 millimeters by 11 millimeters. the height is 11 millimeters.

What situation is an example of an observational study