Question

o f juniors and seni Of the 5 out if they pro Total Hamburger Hot Dog 13 53 40 A group of students, consisting of juniors and seniors, we surveyed about if they preferred hot dogs or hamburgers. Of the 53 juniors, 40 preferred to eat hamburgers. Of the 37 seniors, 13 preferred hot dogs. Using the chart, answer the questions below. How many... a. total students? b. preferred hot dogs? c. junior n hot dog? d. senior hamburger? e. junior U hamburger? f. senior n hot dog? 8. not hamburger? h. not junior? Junior Senior Total 13 26 90 64 100 people were surveyed to see if they would rather eat a chocolate chip or sugar cookie. Use the probability tree to answer the following questions. Adult-60 Child-40 Sugar-17 How many... a. total people? b. adults? C. child n sugar? d. adult n chocolate chip? e. child U chocolate chip? f. adult U sugar? g. not child? h. not sugar? i. not (child n chocolate chip)? Chocolate Chip-43 Chocolate Chip-30 Sugar- 10
both if possible! thank you!

Answer 1

question 1

a) total students (N) = 53+37 = 90

b) students who preferred hot dogs = 13 + 13 = 26

c) N(Junior n Hot dog) = 13

d) N(Senior n hamburger) = 24

e) N(Junior U Hamburger) = N(Junior) + N(hamburger) - N(Junior n Hamburger) = 53 + 64 - 40 = 77

f) N(Senior n Hot dog) = 13

g) N(not hamburger) = N - N(student eating hamburger) = 90 - 64 = 26

N(not Junior) = N - N(Junior) = 90 - 53 = 37