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Class 9 Maths
The Mathematics of Maybe: Introduction to Probability Chapter 7 Quiz 2
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P(odd and A)
0%
1/4
0%
1/2
0%
2/5
0%
1/8
The tree diagram shows the outcomes of rolling a die and flipping a coin. How many total outcomes are there?
0%
6
0%
12
0%
24
0%
36
The tree diagram shows the outcomes of rolling a die and flipping a coin. What is the probability of rolling an even number and flipping a head?
0%
3/12
0%
1/2
0%
4/12
0%
0/12
How many total outfit options are represented?
0%
12
0%
22
0%
3
A bag contains some red-colored and some blue-colored marbles. First a red-colored marble is drawn and then, without replacing the first marble, a blue-colored marble is drawn. Are the two events dependent or independent?
0%
Independent
0%
Dependent
Two marbles are drawn from a container in such a way that the first marble drawn is replaced before selecting the second marble. Does the outcome of the first draw affect the outcome of the second?
0%
Yes
0%
No
There are 6 red marbles, 5 green marbles, and 4 yellow marbles in a bag. If Joe picks 2 marbles one after the other without replacement, then what is the probability that both are red in color?
0%
2/5
0%
1/21
0%
4/25
0%
1/7
A box contains all the letters of the word U N D E R S T A N D. What is the probability of selecting an 'N' first and a 'D' next, if the first letter is replaced?
0%
3/50
0%
1/25
0%
1/10
0%
2/5
Two dice are rolled and it is recorded whether the result on each is odd or even. What is the probability both are odd?
0%
1/4
0%
1/2
0%
2/4
0%
3/4
A box contains 3 brand A batteries and 7 brand B batteries. 30% of brand A batteries are faulty and 40% of brand B batteries are faulty. A battery is selected at random and then checked to see if it is faulty. What is the probability that a faulty brand B battery is selected?
0%
0.28
0%
1/4
0%
0.42
0%
0.21
A box contains 3 brand A batteries and 7 brand B batteries. 30% of brand A batteries are faulty and 40% of brand B batteries are faulty. A battery is selected at random and then checked to see if it is faulty. What is the probability that a not faulty brand A battery is selected?
0%
0.21
0%
0.09
0%
0.28
0%
0.25
James starts to draw a diagram for rolling two dice and recording whether a 6 is rolled or not. What is the probability of rolling 2 sixes?
0%
1/36
0%
1/6
0%
1/12
0%
1/2
A bag contains 3 lemons and 2 limes. A piece of fruit is taken from the bag and not put back. Then a second piece is taken. What is the probability of taking two limes?
0%
1/10
0%
2/5
0%
5/20
0%
4/20
A bag contains 3 lemons and 2 limes. A piece of fruit is taken from the bag and not put back. Then a second piece is taken. What is the probability of taking exactly 1 lemon?
0%
12/20
0%
6/20
0%
2/20
0%
18/20
A bag contains 30 pieces of candy. There are 15 grape, 7 cherry, 3 lemon, 5 strawberry. What is the probability of drawing a lemon?
0%
3
0%
1/10
0%
3/10
0%
30%
A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?
0%
3/10
0%
30%
0%
1/9
0%
1/3
The theoretical probability of rolling an even number on a dice.
0%
3
0%
1/2
0%
1/6
0%
5/6
You spin the spinner. How many possible outcomes are there?
0%
4
0%
8
0%
1
0%
6
An unlikely chance event is closer to what number?
0%
0.25
0%
1
0%
0.8
0%
0.75
A fruit basket contains 9 apples, 3 bananas, 7 oranges, 5 pears, and 1 grapefruit. Kyle randomly chooses a fruit, does not replace it, then chooses another. What is the probably that he chose two pears?
0%
9/49
0%
4/125
0%
1/10
0%
1/30
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