InkLoopInkLoop/NYS Standards/NY-7.SP.7
NY-7.SP.7
7th GradeStatistics and Probability60 target questions

Develop a probability model and use it to find probabilities of events. Compare probabilities from a model to observed frequencies; if the agreement is not good explain possible sources of the discrepancy.

Sample Practice Questions (3)

1
A spinner is divided into four equal sections: Red, Blue, Green, and Yellow. A student spins the spinner 40 times and records the results in the table shown. Compare the observed frequency of landing on Red to the theoretical probability model. Explain why they might differ.
ColorObserved Frequency
Red12
Blue8
Green10
Yellow10
Theoretical Spinner Model Red 25% Blue 25% Green 25% Yellow 25%
Open response · diagram · tableSee Answer + Explanation →
2
A spinner is divided into 8 equal sections. The sections are colored as follows: 3 red, 2 blue, 1 green, and 2 yellow. If the spinner is spun once, what is the theoretical probability that it will land on a red section?
Spinner Sections Red 37.5% Blue 25% Green 12.5% Yellow 25%
A
B
C
D
Multiple choice · diagramSee Answer + Explanation →
3
A spinner is divided into three sections: Red, Blue, and Green. Based on the diagram, what is the probability that the spinner lands on Green?
Spinner Sections Green 50% Red 25% Blue 25%
A
B
C
D
Multiple choice · diagramSee Answer + Explanation →
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