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WorksheetsGrade 7 Probability
Total questions: 17
Worksheet time: 1hrs 12mins
John knows that he should roll a 5 on a number cube one out of six times. When he actually rolled the number cube 6 times, he rolled a 5 three times. Which explanation describes this reasoning?
Theoretical probability is 1/6; experimental probability was 1/6
Theoretical probability is 1/6; experimental probability was 1/3
Theoretical probability is 1/6; experimental probability was 1/2
Theoretical probability is 1/6; experimental probability was 5/6
The student council conducted a survey to determine what drinks and how many of each type of drink they should purchase to stock their concession stand. The table above shows the results of their survey. If the student council will purchase a total of 600 drinks, how many of these drinks should be lemonade based on the results of the survey?
336
56
150
280
Tara has two bags of marbles. The first bag contains 6 red marbles, 5 blue marbles, and 4 green marbles. The second bag contains 3 red marbles, 2 blue marbles, and 4 green marbles. Tara will randomly select 1 marble from each bag.
What is the probability that Tara will select a blue marble from each bag?
5/9
1/135
1/6
2/27
0.52
What is the probability you spin something larger than 10
5
3/10
10/15
3/8
Lynette made the following diagram. Which list shows all the possible outcomes, according to her tree diagram?
C, O, G
A, B, C, O, G
AB, COG
AC, AO, AG, BC, BO, BG
A bag contains 2 silver coins, 2 gold coins, 6 copper coins, and 5 brass coins. A coin is chosen without looking. What is the probability that it will be gold?
11/15
6/15
4/15
2/15
In a bag of 40 jelly beans , there are 5 black jelly beans. How many do you predict will be black in a bag of 160 jelly beans?
40
10
20
50
If a coin is tossed 72 times, how many times do you expect to toss a head?
36
72
24
12
