School Improvement in Maryland

Using the State Curriculum: Mathematics, Grade 6

Algebra | Geometry | Measurement | Statistics | Probability | Number | Processes

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Standard 5.0 Knowledge of Probability

Topic B. Theoretical Probability

Indicator 1. Determine the probability of one simple event comprised of equally likely outcomes

Objective b. Express the probability of an event as a decimal

Assessment limit: Use a sample space of 10, 20, 25, or 50 outcomes

Selected Response Item

Elise's backpack contains 2 red pens, 3 blue pens, and 5 black pens. She will take 1 pen out of her backpack without looking.

What is the probability that the pen Elise takes out of her backpack is red?

  1. 0.10
  2. 0.20
  3. 0.25
  4. 0.50
/toolkit/vsc/assessment_items/msa_math_6_039.xml

Correct Answer:
B

Assessment limit:
Use a sample space of 10, 20, 25, or 50 outcomes
Resources for Objective 5.B.1.b:
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