TEKS.MATH.8.11C

There are 15 girls and 15 boys in 8th period. If Terry randomly selects a member of 8th period, what is the probability that she will select a boy?

• 15/15
• 1/2
• 15/40
• 15/30

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TEKS.MATH.8.11C

The part of the population being studied

• population
• sample
• random

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TEKS.MATH.8.11C

Find the probability of drawing a 10 from a standard deck of 52 cards.

• 1 out of 52
• 13 out of 52
• 26 out of 52
• 4 out of 52

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TEKS.MATH.7.6D

TEKS.MATH.8.11C

You want to know how many students catch the bus to go home.  You go to the bus stop and ask students how they go home from school.  Is this a random sample or biased sample?

• BIASED
• RANDOM

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TEKS.MATH.8.11C

Clara picks a marble at random, puts it back, and then picks another marble at random.

• Dependent
• Independent

Tags

TEKS.MATH.7.6I

TEKS.MATH.8.11C

Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results?

• thirty students who are often tardy
• thirty students who are rarely tardy
• thirty of her friends
• thirty randomly selected students from her school

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TEKS.MATH.8.11C

Identify the Population:
Wicomico County Public Schools randomly selected 230 teachers to find out which technology resource it's teachers feel is the most effective.

• 230 Teachers
• All Wicomico County Teachers
• Students
• Wicomico County Public Schools

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TEKS.MATH.8.11C

If I wanted to know how many blades of grass are inside the track, which sampling method could I use?

• Have my students count every blade of grass
• Guess
• Divide the grassy area into 1 inch sections, randomly pick several sections to count, average them together and multiply that by the total square inches.

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TEKS.MATH.8.11C

At a middle school, the 7th graders will conduct a survey to decide where they want to go on a field trip. Which method will result in the least biased decision?

• to randomly ask 8th grade students who went on a field trip last year
• to randomly choose some 7th grade students to select a location
• to ask all 7th grade teachers and administrators for a location
• to ask the student council to choose a location

Tags

TEKS.MATH.8.11C

Unbiased sampling is:

• when you choose the group you think will give you the answer you want, accept volunteers or survey by convenience
• when any member of the population is equally likely to be chosen for the sample

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TEKS.MATH.8.11C