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Data and Statistics Test Review

Quiz by Christine Knecht

Grade 7
Math
Common Core

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12 questions
Show answers
  • Q1
    Question Image
    Answer Image
    Answer Image
    Answer Image
    Answer Image
    60s
  • Q2
    Malika and Adrian prepared containers of potato salad at a deli. Each container was supposed to have a mass of one pound. The manager selected a random sample of containers prepared by each employee to check the mass of each container. The results are shown in the table below. Which inference is BEST supported by these data?
    Question Image
    Most of Adrian's containers will have a mass closer to one pound than most of Malika's containers.
    Adrian will produce more containers with a mass of exactly one pound than Malika will.
    Malika will produce more containers with a mass of exactly one pound than Adrian will.
    Most of Malika's containers will have a mass closer to one pound than most of Adrian's containers.
    60s
    7.SP.B.4
  • Q3
    A school principal wants to determine which type of speaker the students prefer to invite to an assembly for the entire student population. Which survey method would produce the BEST representative sample?
    survey all of the students on the student council
    survey all of the students who went to the last basketball game
    survey every fifth person who shops at a mall
    survey every tenth student entering the school one morning
    30s
    7.SP.A.1
  • Q4
    A researcher surveyed five randomly selected employees from each of four different companies about their daily commutes to work. The table shows the commute times for the surveyed employees. Based on the data, which company most likely has the longest average commute time per employee?
    Question Image
    Company 1
    Company 4
    Company 3
    Company 2
    30s
    7.SP.B.4
  • Q5
    A principal gathered data about the distance, in miles, that his teachers and bus drivers live from the school. The box plots below show these data. Based on the box plots, which statement is true?
    Question Image
    The interquartile range of the distances for the bus drivers is twice the interquartile range of the distances for the teachers.
    The range of the distances for the teachers is 5 miles less than the range of the distances for the bus drivers.
    The range of the distances for the teachers is twice the range of the distances for the bus drivers.
    The interquartile range of the distances for the bus drivers is 5 miles less than the interquartile range of the distances for the teachers.
    30s
    7.SP.B.3
  • Q6
    The students in a class collected data on the number of minutes per day some kids spend brushing their teeth. Their data is shown in the dot plot below. Which statement correctly describes these data?
    Question Image
    The median is 1.5 and the mean is greater than the median.
    The median is 1.5 and the mean is less than the median.
    The median is 0.5 and the mean is greater than the median.
    The median is 0.5 and the mean is less than the median.
    30s
    7.SP.A.2
  • Q7

    What is the first step when calculating the mean absolute deviation?

    Find the mean of the absolute value.

    Find the absolute value of the data set.

    Find the mean of the data set

    Find the difference between the data points.

    30s
  • Q8

    Find the mean absolute deviation of 10, 9, 3, 8, 10.

    5

    3

    1

    2

    30s
  • Q9

    Find the mean absolute deviation of 58, 38, 54, 48, 26, 36.

    20

    43

    12

    10

    30s
  • Q10
    A school wants to find out the average number of books read by students in a month. They take a random sample of 30 students and find an average of 5 books read per student. If they take another random sample of 30 students, which statement is most likely true?
    The average number of books read will be close to 5 but may vary slightly.
    The average number of books read will be zero.
    The average number of books read will be exactly 5.
    The average number of books read will be completely different.
    30s
    7.SP.A.2
  • Q11
    A botanist is studying the height of a particular species of plant. A random sample of 20 plants shows an average height of 15 cm. If the botanist takes additional random samples of 20 plants each, what is the most likely outcome?
    The average height will be 0 cm.
    The average height will always be exactly 15 cm.
    The average height will be completely different in each sample.
    The average height will be close to 15 cm with some small variations.
    30s
    7.SP.A.2
  • Q12
    Why is it important to use a random sample rather than a convenience sample?
    A convenience sample is always less expensive
    A random sample includes only volunteers
    A convenience sample requires more participants
    A random sample is more likely to be representative of the population
    30s
    7.SP.A.1

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