who have a cat, 70% also have a dog. Of the students who do not have a cat, 75%
ID: 2919525 • Letter: W
Question
who have a cat, 70% also have a dog. Of the students who do not have a cat, 75% have a dog. Complete the two-way table. (Explore Activity) .yn a survey of 50 students, 90% said that they have a cat. Of the students Dog No Dog TOTAL No Cat tS TOTAL 130 | So | 50 a. Enter the total number of students surveyed in the bottom right cell of the table. b. Fill in right column. c. Fill in top row. d. Fill in second row. e. Fill in last row 2. The results of a survey at a school are shown. Is there an association between being a boy and being left-handed? Explain. (Examole 1Explanation / Answer
Given, total students surveyed = 50
60% had cat, 60% of 50 = 30
of the total students who have cat, 70% have dog,
implies 70% of 30 have dog also = 21
students with cat and without dog = 30-21 = 9
students who do not have a cat, = total - students with cat = 50-30 = 20
out of 20, 75% have dog, implies 75% of 20 = 15 are without cat but with dog
5 are without dog and without cat
table looks like this
DOG NO DOG TOTAL CAT 21 9 30 NO CAT 15 5 20 TOTAL 36 14 50Related Questions
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