Problem Solving Jse the table to answer Exercises 4 and 5.
Students with Pets
Fraction of
Number
Students
of Pets
with Pets
Processes
4. Practices
Justity Conclusions The
table shows the results of a class survey
about pets. Suppose 53 students were
surveyed. About how many students have
one pet? Justify your answer,

Number of pets.
0
1
2or more
Students with Pets
1/20
1/2
9/20
​

(co 3) the times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of 9.4 minutes. a random sample of 25 customers has a mean of 36.1 minutes or less. would this outcome be considered unusual, so that the store should reconsider its displays? no, the probability of this outcome at 0.035, would be considered usual, so there is no problem yes, the probability of this outcome at 0.035, would be considered unusual, so the display should be redone no the probability of this outcome at 0.359 would be considered usual, so there is no problem yes, the probability of this outcome at 0.965 would be considered unusual, so the display should be redone