a coffee shop owner is interested in determining what people think about the new coffee flavor which of the following is the population in this situation
A: the first 50 customers who brought who bought the new coffee
B: at customers who brought the new coffee
C: 100 random customer ps
D: all customers who did not buy the new coffee
C: 100 random customers
D: no because he did not choose students randomly
Tom wants to know the average number of musical instruments students in his school play he used the school’s two band classes consisting of a total of 48 students as his representative sample he concluded that students in his school play an average of three musical instruments is his conclusion valid
A: No because his representative sample is too large
B: yes because all members of the sample play at least one musical instrument
C: yes because the sample includes both males and females who play musical instruments
D: no because he did not choose students randomly
A survey is conducted to determine the most common reason people own a cell phone a company sent out a survey to customers between the ages or 20 and 30 based on the responses the company concluded that people own a cell phone for messaging purpose is this conclusion valid
A: no because the sample includes customers of too many different ages
B: no because not all people who own a cell phone have the same probability of being selected
C: yes because the sample includes make and female customers
D: yes because the sample includes all customers between the ages of 20 and 30
B: no because not all people who own a cell phone have the same probability of being selected
a figure has exactly one pair of parallel sides what type of figure is it
A: circle
B: trapezoid
C: triangle
D: rectangle