What kind of sampling technique is used when a customer service representative asks if you would like to take a brief survey after the call? Explain your answer.

Answer:

Volunteer Sample

Step-by-step explanation:

Because each participant has to volunteer to answer the question. By doing so they give up their time which makes it a volunteer sample.

Elena would like to know the average height of seventh graders in her school district. She measures the heights of everyone in a random sample of 20 students. The mean height of Elena's sample is 62 inches, and the MAD (mean absolute deviation) is 2 inches. SELECT ALL TRUE STATEMENTS.

a. The median height of the sample must be between 59 and 63 inches.

b. Another random sample of 20 students is likely to have a mean between 57 and 65 inches

c. The mean height of these 20 students is likely to be the same as the mean height of all students in the district.

d. The mean height of these 20 students is likely to be the same as the mean height of a second random sample of 20 students.

e. Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.

PLS ANSWER ASAP NEED HELP

Ballio's family traveled 2/7 of the distance to his uncle’s house on Saturday. They traveled 2/5 of the remaining distance on Sunday. What fraction of the total distance to his uncle’s house was traveled on Sunday?

The solution to 13x = 78 is x =___
Only input whole number and no links!

Which American mathematician realized that words, sounds, and images could all be represented using a binary code

The graph shows information about the lion population at a safari park. Lions were introduced in the park in 2010. In 2012, the park has a population of 32 lions. A year later, in 2013, the park has 128 lions. Write an exponential function that models this situation. Let X represent the number of years since 2010 and let f(x)represent the number of lions.

Need with question b

4.A farmer estimated that there were 25 gallons of water left in atank. If this is an underestimateby 16%, how much water was actually in the tank?

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6
Which expression is equivalent to
(7)
?
-

HELP!!!
An architect is making a scale model of a house. On the model 2.5 inches represents 5 yards. Which graph represents the same relationship?

Ellie buy a lawn mower online for $33. If shipping and handling are an additional 30% of the price ,how much shipping and handling will Ellie pay?

The table shows how much Jose earns at his part-time job. At the rate he is paid, how much
would Jose make if he worked 9 hours?

Ok guy a few more that i need help with!/3 mi.=_yd./24 in.=_ft/26 yd.=_in. Thanks if you know some!!

What is the value of this expression
6 + 24 +3.0.5(42)

PLS PLS HELP I WILL MARK BRAINLIEST!

please help me with this
no links

A circle has a diameter of 26 units. What is the area of the circle to the nearest hundredth of a square unit?

81.68
530.93
2123.72
8494.87

survey asked eight students about their scores on a history test and whether they studied for the test. The table shows the results of the survey.


Test Scores
Studied

Did Not Study
88

34
90

67
86

80
96

59



Which statements about the data sets are true? Check all that apply.
The mean absolute deviation for the group of students who studied is 12.
The mean absolute deviation for the group of students who did not study is 13.5.
The data for the group that studied are more spread out than the data for the group that did not study.
The data for the group that did not study are more spread out than the data for the group that studied.
The data for the group that studied are more clustered around the mean than the data for the group that did not study.
The data for the group that did not study are more clustered around the mean than the data for the group that did study.

Brainliest if you can answer question 12 right :)

Please answer this correctly and explain how you did it.

Please helpppppppp
pppppppppppppppp.
If IT IS A FAKE I WILL REPORT YOU< AND YOUR ANSWER

Please help, I have no idea how to do this

What is the measure?

SOMEONE HELP ME !
WILL GIVE BRAINLISIT


directions :Use the properties and mental math to solve. Write your answer in simplest form.

( properties : comm and assov)

ANSWERRRRRRRRRRRR BEST ONE GETS BRAINLIEST

will give brainliest
one side of a trapezoid is extended and the dotted line forms a right angle with the extended line. use given information to find measurement of angle p.

answers are:





A. 30°
B. 45°

C. 60°
D. 120°

Which is the correct label of the parallel lines?

HEEEEEELLLPPPP, I'LL MARK YOU THE BRAINLIEST IF YOU GET THE ANSWER RIGHT

Kendall makes candles and sells them online. To make an Essential Elegance candle, she adds 3 drops of lavender and 6 drops of vanilla to a bowl of unscented wax. To make a Garden Glory candle, she adds 4 drops of lavender and 10 drops of vanilla to the bowl instead. Which candle has a greater ratio of lavender to vanilla?

EEEEEEEEEEEEEEEEEE

Nathan found two worms in the yard and measured them with a ruler. One worm was 4/5 of an inch long. The other worm was 1/10 of an inch long. How much longer was the longer worm? Write your answer as a fraction or as a whole or mixed number.
please help and thank you even if you dont