The following data are for 30 observations involving two categorical variables, x and y. The categories for x are A, B, and C; the categories for y are 1 and 2. Observation x y Observation x y
1 A 1 16 B 2
2 B 1 17 C 1
3 B 1 18 B 1
4 C 2 19 C 1
5 B 1 20 B 1
6 C 2 21 C 2
7 B 1 22 B 1
8 C 2 23 C 2
9 A 1 24 A 1
10 B 1 25 B 1
11 A 1 26 C 2
12 B 1 27 C 2
13 C 2 28 A 1
14 C 2 29 B 1
15 C 2 30 B 2
1. Develop a crosstabulation for the data, with x as the row variable and y as the column variable.
2. Compute the row percentages (to 1 decimal).
3. Compute the column percentages (to 1 decimal).
4. Describe the observed relationship between variables x and y.

step-by-step explanation:

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺

365

step-by-step explanation: