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Duplicate of Statistics and probability
Duplicate of Statistics and probability
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#7th grade statistics and probability.
Flashcards
23 cards
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Questions
23
Answers
1
A bag has 12 pieces of candy; 2 red 4 blue and 6 green.What is the probability of a blue piece.
4/12
1/3
1/2
2/12
2
In a bag off all yellow marbles, what is the probability of pulling a red marble?
Impossible
1, Certain
unlikely
0.5 even chance
3
An example of a situation that has zero percent chance of happening is...
Getting tails on a coin tos
Picking an Ace from a deck of cards
Getting an A
rolling a 7 on a cube
4
P (red and green)
50%
0
2/5
100%
5
2 of the 6 balloons are white.What is the probability that a selected balloon will be white?
1/3
2/5
1/4
5/32
6
What is the probability of choosing a king from a deck of cards?
4
4/52
1/52
1/13
7
20 ,21 ,23, 20, 25, 21, 22, 26 What is the mode?
20
20 & 21
no mode
21
8
The mean of 2, 12, 10, and 80 is?
90
100
26
104
9
Which class has the greatest variation?
Mrs. Plum because her media is 84
Mr. Scarlet because his median is 78
Mrs. Plum's because her range is 47
Mr Scarlet because his range is 34
10
Is this a random sample?
yes, every item has an equal chance of being drawns
No, he needs to draw more than 6
This is a biased sample
11
Determine the variation/range of the data in the box plot.
10
3
6
8
12
What is the probability you will spin a 4, 5, or a 6?
1/2
3
1/6
0.5
13
What is the Mean of 34, 5, 28, 6, 9?
7.98
17.6
16.4
13.5
14
What is the best estimate of the median for both ponds?
10-15
10-20
5-20
5-10
15
If you want to find what pizza place Menifee students prefer, which would be a random sample?
Survey Mrs. Ruple's students
Survey students at MVMS
Survey several students at different schools in Menifee
Survey people in Pizza Factory
16
What is the mode of this data set?
90
10
20
30
17
P(pink)
100%
0
0.5
1/3
18
What is the probability of rolling an even number on a number cube?
100%
50%
2/6
0
19
In this bag...
It is unlikely that a blue marble will be selected
It is impossible that a orange marble will be drawn.
It is unlikely that a green marble will be selected
It is certain that a yellow marble will be selected
20
Identify the median
0
4
2
1
21
What is the range?
6
4
14
10
22
Find the MAD
7
5
1.4
10
23
2,5,10,8,1,5 What is the median?
5
5.5
no median
9
