AnswersTX-PrecalculusPiecewise Defined Functions

Piecewise Defined Functions — Cumulative exam Answers

25 verified answers8 views
21
Free Preview

Four girls and six boys are in a Spanish club. Three of the people will be chosen at random to represent the group in a photograph.What is the probability that one girl and two boys will be chosen?

A
40%
B
50%
C
60%
D
70%
22
Free Preview

A survey was taken of children between the ages of 10 and 17 about how many siblings they have and whether they have a pet. The results of the survey are shown in the table.

Question illustration
A
Out of the 125 children who do not have a pet, 18 of them have 2 siblings.
B
Out of the 97 children who have 1 pet, 40 of them do not have any siblings.
C
Out of the 125 children who do not have any siblings, 34 of them have a pet.
D
Out of the 97 children who have 1 sibling, 40 of them do not have a pet.
23

A student collected data on the size of coffee chosen by customers at a convenience store, and whether the customers took their coffee with sugar, cream, or both. Size of Coffee SmallMediumLargeTotalCoffee AdditiveCream8152144Sugar481123Both15234280 Total274674147What percentage of customers chose a medium-sized coffee?

A
31.3%
B
32.6%
C
50.3%
D
62.1%
24

Wayne measured the width of a marker tip as 0.012 cm. What is the margin of error?

A
0.007 to 0.017
B
0.011 to 0.013
C
0.0115 to 0.0125
D
0.0125 to 0.0135
25

The resting heart rates for a sample of 15 students are recorded in the following stemplot.

Question illustration
A
66.0 beats per minute
B
69.0 beats per minute
C
69.9 beats per minute
D
70.0 beats per minute

Did you find these answers helpful?

More from this Course

RC
25 verified answers

Cumulative Exam

Assignment
21 verified answers

Piecewise Defined Functions

Assignment
20 verified answers

Assignment