You and a group of friends want to know how many students in your school prefer country music. There are 460 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 1 5 10 4 Friend A 2 3 8 7 Friend B 1 2 13 4 Friend C 1 4 10 5 Friend D 3 5 9 3 a. Use each sample to make an estimate for the number of students in your school who prefer country music. You Friend A Friend B Friend C Friend D Estimate b. Describe the center and variation of the estimates. The estimates have a median of students and a range of students.

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step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

answer: a. 13/44

step-by-step explanation: judging by the information given to us, we are looking for experimental probability. we can see that 13 males have chosen chocolate ice cream. there are 44 ice creams in total (remember that the total is always the denominator). so our answer is 13/44.