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MATH 7 Sampling & Probability Flashcards | StudBud
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MATH 7 Sampling & Probability
MATH 7 Sampling & Probability
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Math 7 Statistics & Probability Unit
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
The easiest method to get a sample from. Usually produces biased results.
Convenience Sampling
Large Group Sampling
Random Sampling
Systematic Sampling
2
Using the spinner, determine P(Not Yellow):
0
1/4
3/4
1/2
3
How many possible outcomes are there for rolling a 6-sided die, and flipping a coin?
8
12
2
3
4
A sandwich shop has 5 types of bread 7 cheeses & 4 meats. How many sandwich combos can be made?
140
16
128
33
5
This method divides the population into groups based on location
Geographic Sampling
Location Sampling
Cluster Sampling
Stratified Sampling
6
What is the probability of selecting a blue marble in a jar with 12 red, 16 blue and 14 yellow?
1/4
28/42
16/42
8/21
7
Cards labeled 1-5 are placed into a bag. You pick two cards. What is the chance they add to 10?
1/5
1/10
0
1
8
The best method to sample. Everyone has an equal chance of being selected.
Random Sampling
Stratified Sampling
Biased Sampling
Convenience Sampling
9
Based on this tree diagram, how many possible outcomes are there?
2
8
4
6
10
When probabilities are written as decimals, they range from ________.
0 to 1
0 to 100
0.0 to 0.1
0 to 1000
11
“Should we stop caring about our students’ education and allow them to use phones at school?”
Bias: Parents never had cell phones before
Bias: Assumes phone users don't care about school
Unbiased: It is written as a question
Bias: Phones are against school rules
12
To find the degrees needed for a circle graph, you...
Guess, because I forget how to do this
Divide results by total outcomes and multiply by 360
Take 360 and subtract the number of favorable results
Divide total outcomes by results and multiply by 100
13
If you're drawing from a full deck of cards, what is P(Red Jack)?
1/13
1/26
1/4
1/52
14
This method is when you take every Nth person from a population.
Cluster Sampling
Random Sampling
Systematic Sampling
Stratified Sampling
15
A line graph is best used to describe..
Total amounts of each response
Change in opinion
Parts of a whole
Change over time
16
This method divides the population into subgroups based on certain characteristics.
Cluster Sampling
Department Sampling
Random Sampling
Stratified Sampling
17
A school has 945 boys and 793 girls. What is the probability of randomly selecting a girl?
945/1738
793/1738
18
This vine is based of a song by the following band
Red Hot Chili Peppers
Fetty Wop
Imagine Dragons
Nickelback
19
If the probability of an event is 1/25, the chance of this happening is ________________.
Impossible
Unlikely
Likely
Certain
20
If you were to flip a coin three times, what is the probability of getting 3 tails?
1/2
0
1/8
1/4
21
What is the difference between theoretical and experimental probability?
T based off of a tree diagram, E based off a calculator
They are basically the same
T based on trials, E based on possible outcomes
T based on possibility, E based on actual trials
