Michelle is interested in knowing how often girls in her class at school use their cell phones to instant message their friends.
Which of the following methods could Michelle use to conduct a simple random sample to answer her question?

the options for the answer are

Step-by-step explanation:

A. Give the survey to the first fifty girls on a list of all the students in her class

B. Post her survey on the Internet and ask only girls to respond

C. Write the name of each girl in her class on a card and then draw 10 cards from the hat

D. Identify which homeroom each girl in her class is in and then choosing a sample from each homeroom based on the number of girl in the homeroom

C

Step-by-step explanation:

Got it right on edge

75%

step-by-step explanation:

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

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m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0