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Finding the Mean

Quiz by Tara

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10 questions
Show answers
  • Q1
    How do you find the mean of a data set?
    The mean is the number that appears most often in the data set.
    Add the two numbers in the middle of a data set and divide by two.
    Divide the sum of a set of items over the number of items.
    Place the numbers in order and find the number in the middle.
    60s
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  • Q2
    The mean is...
    the best way to describe all data sets
    another name for outlier
    a measure of spread
    a measure of center
    60s
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  • Q3
    The masses of six chairs are 34.5 kg, 42.6 kg, 39.8 kg, 40.1 kg, 53.4 kg, and 33.8 kg. Find their mean mass.
    40.7 kg
    41.35 kg
    39.6 kg
    244.2 kg
    60s
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  • Q4
    Jeffrey's math test scores include 100, 95, 86, 87, 41, 92 and 93 (%). Jeffrey's teacher told him that she would remove the outlier from his final test average. What will Jeffrey's mean test grade be if the outlier is excluded?
    about 85%
    about 79%
    594%
    about 92%
    60s
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  • Q5
    What was the mean temperature at noon from Friday to Monday?
    Question Image
    51.2
    50.8
    50.4
    254
    60s
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  • Q6
    The dot plot shows the number of coupons sold by volunteers raising money for a food pantry. What was the mean number of coupons sold by the volunteers?
    Question Image
    4
    3.375
    9
    60s
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  • Q7
    What was the sprinter's mean time for the 100-meter dash at these meets?
    Question Image
    10.116 s
    50.58 s
    10.113 s
    11 s
    60s
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  • Q8
    Eight hockey teams competed in the quarter finals of a national championship. The dot plot shows the number of goals scored by each team. What was the mean number of goals scored by each team?
    Question Image
    3.5 goals
    3.25 goals
    1.75 goals
    26 goals
    60s
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  • Q9
    Jack took 4 tests in science. His current average in science is 88%, but Jack hopes to end the marking period with 90%. What must Jack earn on his 5th science test in order to achieve his goal?
    90%
    98%
    89%
    92%
    60s
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  • Q10
    The mean of 4 numbers, 5, 8, 12 and y is 7. Find the value of y.
    5
    4
    3
    6
    60s
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