Probability
Authored by M G
Mathematics
6th - 8th Grade
CCSS covered
Used 13+ times
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25 questions
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1.
REORDER QUESTION
2 mins • 1 pt
Lauren spins the spinner with 8-equal sized sections one time.
Drag the tiles to arrange the events in order from LEAST LIKELY to MOST LIKELY.
spinning a 4 or 5
spinning an even number
spinning 6
spinning a number greater than 5
2.
FILL IN THE BLANKS QUESTION
3 mins • 1 pt
A deli offers the types of bread and sandwiches show in the table. How many possible outcomes are there?
(a)
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What is the probability of something that is CERTAIN TO HAPPEN?
1
2 or more
0
100%
Answer explanation
The probability of something that is certain to happen is always 1 or 100%. Both answers reflect the same concept: certainty in probability. Therefore, the correct choices are 1 and 100%.
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
What is the probability of something that is IMPOSSIBLE TO HAPPEN?
0
1
0%
100%
Answer explanation
The probability of an event that is impossible to happen is defined as 0. This means it cannot occur at all, which is also expressed as 0%. Therefore, both '0' and '0%' are correct answers.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The spinner is divided into eight equal parts. Find P(white) =
1/8
5/8
7/8
3/7
Answer explanation
The spinner has 8 equal parts. If 5 of those parts are white, then the probability of landing on white is P(white) = 5/8. Thus, the correct answer is 5/8.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A box contains 50 marbles of which 8 are yellow, 10 are green, 16 are red and the remaining are blue.
A marble is drawn from the box at random. Find the percent of the probability that the marble drawn is green.
16%
20%
32%
10%
Answer explanation
The box has 50 marbles, with 10 green marbles. The probability of drawing a green marble is 10/50, which simplifies to 1/5. To find the percentage, multiply by 100: (1/5) * 100 = 20%. Thus, the correct answer is 20%.
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A dice (numbered 1-6) is rolled 20 times. How many times will a number less than 4 show?
5
10
15
Never
Answer explanation
When rolling a die, the numbers less than 4 are 1, 2, and 3. The probability of rolling a number less than 4 is 3 out of 6, or 1/2. Over 20 rolls, we expect about 10 rolls to show a number less than 4.
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