Rachael gave a survey to her classmates to learn about their superstitions. Here's some of the data she collected. can you answer the one in the picture and this question also please:

This data set contains:Choose 1
A) 4 Variables, 1 of which is quantitative
B) 4 variables, 2 of which are quantitative
C) 3 variables, 1 of which is quantitative
D) 3 variables, 2 of which are quantitative

The individuals in this data set are B) Rachael's Classmates

The first column of the table is what will give this away

This data set contains A) 4 Variables, 1 of which is quantitative

Why is this? Because the four variables are

Age is quantitative because it deals with a quantity or number. We can do things like find the average age and it makes sense to do so. The other variables are qualitative or categorical. Gender is nominal as you can't order the data. Birth month is ordinal though because we can order the months from January to December. The responses for "read horoscope" are nominal data because we cannot order "yes" versus "no".

picture below

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584