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Year 8 Monday stats and prob Flashcards | StudBud
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Year 8 Monday stats and prob
Year 8 Monday stats and prob
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Basic Probability and Statistics
Flashcards
21 cards
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Questions
21
Answers
1
Independent events are when...
events won't help each other out.
one event affects the outcome of another event
P(events)
a first event does not affect a second event..
2
P (event) = number of favorable outcomes
I don't know
divided by 1
multiplied by the number of possible outcomes
divided by number of possible outcomes
3
If there is a strong chance that an event will happen then... (hint: two answers are correct)
p=1
P= 0.75
P=3/4
p=0
4
If probability = 0 then the event will never happen impossible!
I'm lost
True
sometimes
False
5
A spinner has 4 sections; 1 red,1 blue,1 orange,1 green,1 yellow. What is P(spinning brown)?
0
2/8
1/4
6
Same jelly beans from last example. What is P(red or purple) Simplify!
3/10
2.5
1/2
1/5
7
Theoretical probability is based on experimental data.
False
True
8
If probability = 1 then the event will definitely happen
I'm lost
True
False
can't tell
9
What did you have for breakfast this morning?
toast
cereal
none of these things
pop tarts
10
On a number cube, what is P(odd number)? Simplify!
4/6
1/2
1/3
11
P(red) and P (not red) are...
probability
complementary events
complementary angles
12
What is the definition of probability?
to ratios are equal
their isn't one
a result of multiplying
a measure of how likely that an event will occur
13
What was the #1 pop song last week?
Sugar
See You Again
One Last Time
Uptown Funk
14
20 jelly beans are in a jar; 6 red, 4 purple, 5 orange, and 5 green. What is P(red)? simplify!
1/4
2/5
3/10
15
What is the probability that tomorrow is the last day of school?
3/4
0
1/2
1
16
An example of complementary events is...
P(A) + P (B)
P(green) + P(yellow)
P(green) and P(not green)
17
A coin is tossed. What is the probability of the coin landing on heads?
1.8
0.75
5
.50
18
What is the probability that you will pass social studies for the year?
certain
Impossible
likely
as likely to happen as not
19
Experimental probability is based on experimental data.
True
False
20
Probability will always be a number from zero to...
0.5
1
any number
1.5
21
A spinner has 4 sections: one green, one blue, one yellow, one red. What is P(not yellow)?
1/4
3/4
1/2
