Generate multiple random samples (or simulated samples) of the same size to gauge the variation in estimates or predictions, and use this data to draw inferences about a population with an unknown characteristic of interest.
For an event described in everyday language, identify the outcomes in the sample space which compose the event, when the sample space is represented using organized lists, tables, and tree diagrams.
Understand that, just as with simple events, the probability of a compound event is the fraction of outcomes in the sample space for which the compound event occurs.
Collect data to calculate the experimental probability of a chance event, observing its long-run relative frequency. Use this experimental probability to predict the approximate relative frequency.
Understand that statistics can be used to gain information about a population by: • Recognizing that generalizations about a population from a sample are valid only if the sample is representative of that population. • Using random sampling to produce representative samples to support valid inferences.
Calculate the measure of variability of a data set and understand that it describes how the values of the data set vary with a single number. o Understand the mean absolute deviation of a data set is a measure of variability that describes the average distance that points within a data set are from the mean of the data set. o Understand that the range describes the spread of the entire data set. o Understand that the interquartile range describes the spread of the middle 50% of the data.
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Q 1/11
Score 0
30
Q 2/11
Score 0
The scores that Joni and Sally received on their first seven assignments are shown
in this table. Which statement is true?
(*NO CALCULATOR*)
30
Sally's median score is lower than Joni's median score.
Sally's median score is higher than Joni's median score.
The median scores cannot be determined.
Sally's median score is the same as Joni's median score.
11 questions
Q.
1
30 sec
NC.7.SP.7.a
Q.
The scores that Joni and Sally received on their first seven assignments are shown
in this table. Which statement is true?
(*NO CALCULATOR*)
2
30 sec
NC.7.SP.4
Q.
3
30 sec
NC.7.SP.2
Q.
4
30 sec
NC.7.SP.8.b
Q.
5
30 sec
NC.7.SP.8.a
Q.
6
30 sec
NC.7.SP.6
Q.
Nicole wants to conduct a survey of the opinions of students at her middle school.
Which survey sample would give her the most accurate results?
7
30 sec
NC.7.SP.1
Q.
Jamal, Gary, Charlie, and Brian are going to stand in a line, one behind the other.
In how many different ways can they stand in the line?
