GIVING BRAINLIEST IF CORRECT! You and a group of friends want to know how many students in your school prefer pop music. There are 840 students in your school. Each person in the group randomly surveys 20 students. The table shows the results. Favorite Type of Music
Country Pop Rock Rap
You 2 13 4 1
Friend A 3 8 7 2
Friend B 4 10 5 1
Friend C 5 10 4 1
Friend D 5 9 3 3

Use each sample to make an estimate for the number of students in your school who prefer rock music.

You Friend A Friend B Friend C Friend D
Estimate

Describe the center and the variation of the estimates.

Median:
students

Range:
students

Nthe opening scene of the movie raiders of the lost ark, indiana jones replaces a golden statue with a bag of sand. the platform on which the statue is placed is designed to detect the mass of the statue. if the bag of sand has a different mass than the statue, then a mechanism triggers and destruction ensues. the density of gold is about 20\text{ g/cm}^320 g/cm 3 20, space, g, slash, c, m, start superscript, 3, end superscript. the density of sand can be estimated at 2.5\text{ g/cm}^32.5 g/cm 3 2, point, 5, space, g, slash, c, m, start superscript, 3, end superscript. the gold statue can be modeled as a cylinder with height 25\text{ cm}25 cm25, space, c, m and radius 8\text{ cm}8 cm8, space, c, m. in terms of \piπpi, what is the mass of sand indiana jones needs to avoid triggering the mechanism?