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In a survey of 200 students, 60% said that they have a cat. Of the students 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.
Step-by
Textbo
a. Enter the total number of students surveyed in the bottom right cell of the table.
X? Animat
Dog
No Dog
TOTAL
Cat
A Print
No Cat
TOTAL
✓ Check
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Suppose you just purchased a digital music player and have put 8 tracks on it. after listening to them you decide that you like 4 of the songs. with the random feature on your player, each of the 8 songs is played once in random order. find the probability that among the first two songs played (a) you like both of them. would this be unusual? (b) you like neither of them. (c) you like exactly one of them. (d) redo () if a song can be replayed before all 8 songs are played.