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Eleventh Grade (Grade 11) Statistics and Probability Concepts Questions

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Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.3
The graph of a bimodal distribution has two distinct peaks.
  1. True
  2. False
Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.3
A distribution, when graphed, cannot have more than two peaks.
  1. True
  2. False
Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.3
Which of the following is generally true for a roughly symmetric, unimodal data distribution (one with no skew)?
  1. Mean ≈ Median ≈ Mode
  2. Mean ≈ Median > Mode
  3. Mean ≈ Median ≈ Mode ≈ 0
  4. Mean ≈ Median < Mode
Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.3
Only unimodal distributions can be symmetric.
  1. True
  2. False
Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.3
Which of the following best describes the dot plot?
Line Plot 2
  1. Symmetric Unimodal
  2. Skewed Right
  3. Skewed Left
  4. Uniform
Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.3
Which of the following best describes the shape of this histogram?
Histogram 1
  1. Symmetric Unimodal
  2. Right Skewed
  3. Left Skewed
  4. Uniform
Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.2
Which of the following is true about the two data sets?

A = {8, 9, 10, 11, 12}

B = {2, 6, 10, 14, 18}
  1. The means and standard deviations are equal.
  2. The means are equal, but the standard deviation of set B is greater than that of set A.
  3. The standard deviations are equal, but the mean of set B is greater than that of set A.
  4. The mean and standard deviation of set B are greater than those of set A.
Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.2
Which of the following is true about the two data sets?

A = {0, 0.1, 0.2, 0.3, 0.4, 0.5}

B = {0, 0.1, 0.15, 0.4, 0.45, 0.5}
  1. The medians and IQRs are equal.
  2. The medians are equal, but the IQR of set B is greater than that of set A.
  3. The IQRs are equal, but the median of set B is greater than that of set A.
  4. The median and IQR of set B are greater than those of set A.
Grade 11 Collecting and Interpreting Data CCSS: HSS-ID.A.2
Which of the following is true about the two data sets?

A = {1, 1.25, 1.5, 1.5, 1.5, 1.75, 2}

B = {1, 1.1, 1.3, 1.6, 1.8, 1.9, 2}
  1. The means and standard deviations are equal.
  2. The means are equal, but the standard deviation of set B is greater than that of set A.
  3. The standard deviations are equal, but the mean of set B is greater than that of set A.
  4. The mean and standard deviation of set B are greater than those of set A.
Grade 11 Scatter Plots CCSS: HSS-ID.B.6, HSS-ID.B.6c
What equation best models the data in the scatter plot?
Coordinate Plane - 5x5 - With Dots
  1. y = -5x + 7
  2. y= -4x - 4
  3. y = 4x + 30
  4. y = 6x + 4
  5. Infinitely many lines of best fit
  6. No line of best fit
Grade 11 Statistics and Probability Concepts
A certain store recorded their sales each day, in total dollars, for a month. If they calculate the standard deviation, and find that it is nearly zero, which of the following is the most reasonable to conclude?
  1. The store had very few sales for the entire month.
  2. The store had almost equal sales each day.
  3. The days with high sales equally balanced the days with low sales.
  4. There is not enough information to make any conclusion.
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