The file measles. dat contains data consistent with that obtained in a survey of par- ents whose children had not been immunized for measles during a recent campaign to immunize all children between the ages of 11 and 15. during the campaign, 7633 chil- dren from the 46 schools in the area were immunized; 9962 children whose records showed no previous immunization were not immunized. in a follow-up survey to explore why the children had not been immunized during the campaign, roberts et al. (1995) sent questionnaires to the parents of a cluster sample of the 9962 chil- dren. ten schools were randomly selected, then a sample of the mi nonimmunized children from each school was selected and the parents of those children were sent a questionnaire. not all parents responded to the questionnaire; you will examine the effects of nonresponse in exercise 13 of chapter 8.

a estimate, separately for each school, the percentage of parents who returned a consent form (variable returnf ). for this exercise, treat the "no answer" responses (value 9) as not returned.

horizontal translation of 2 units in the positive x direction

followed by

vertical translation of 3 units in the positive y direction

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y

step-by-step explanation:

part a. the differences are decreasing, so we know the sequence is not arithmetic. the ratios are constant (=3/4), so we know the sequence is geometric.

part b. from part a, we know the common ratio is 3/4, so each term is 3/4 of the one before. the initial term is the number of gallons at h=1.

g[h] = (3/4)·g[h-1]

g[1] = 384 . . . . initial value required for a recursive definition

part c. the general formula for a geometric sequence is

a[n] = a[1]·r^(n-1)

we have a[1] = 384, r = 3/4, and the term number given by h. the formula that follows is

g[h] = 384·(3/4)^(h-1)

part d. filling in the value and doing the arithmetic, we have

g[12] = 384·(3/4)^11 ≈ 384·0.042235136 ≈ 16.2183 . . gallons

part e. each gallon is 4 quarts, so

16.2183 gal × 4 qt/gal = 64.8732 qt