Category 1 Quiz

A study of population of 600 frogs revealed that 6 out of every 90 frogs in the population have spots on their back. Based on the results of this study, how many frogs in the population do NOT have spots on their back?​ ​There are ​ (a)   frogs without spots on their backs

• 560
• 40
• 640
• 84

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7.6.C

At an assembly 6 out of the first 10 students who entered the gym were carrying a backpack. Based on this information, if 600 students were at the assembly, how many students could be expected to be carrying a backpack?

• 3600

• 3600

• 36

• 360

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7.6.C

The 200 students in a school band will attend an awards dinner. A random survey of 25 of these students was conducted to determine how many of each meal should be prepared for the dinner. The results of the survey are shown.

* 12 students want a beef meal.

* 8 students want a chicken meal.

* 5 students want a pasta meal.

Based on the survey results, which of these is the best prediction of the meals wanted by the 200 students?

• There are 16 students who want a beef meal.

• There are 32 more students who want a beef meal than want a chicken meal.

• There are 52 students who want either a chicken meal or a pasta meal.

• There are 24 more students who want a pasta meal than want a chicken meal.

Tags

7.6.C

There are 8 blue marbles in a bag of 20 total marbles.  What is the probablity of NOT choosing a blue marble at random from the bag?

• 40%

• 80%

• 60%

• 85%

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7.6.C

Amy rolls a 12-sided die numbered from 1-12. What is the probability Amy rolls a number divisible by 3? The probability is ​ (a)   .

• 33 1/3%
• 25%
• 50%
• 66 2/3%

Tags

7.6.I

Andrew picks one marble at a time from a box and replaces it. He repeats this process 25 times and records the results in the table. Based on the table, which color marble has an experimental probability of 1/5?

• Yellow
• Red
• Blue
• Green

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7.6.I

• 1/48
• 1/6
• 1/8
• 1/24

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7.6.I

If you spin the spinner 90 times, how many times should the number 3 be selected?

• 9
• 15
• 16
• 30

Tags

7.6.C

A bag has 3 red marbles, 2 blue and 4 yellow. What is the theoretical probability of pulling a red?

• 3/10

• 3/6

• 1/9

• 1/3

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7.6.I

The following M & M colors are in the bowl:
4 yellow, 6 orange, 3 green, 5 blue, 2 brown.
What is the probability of selecting a brown candy?

• 2/18
• 1/9
• 2/20
• 1/10

Tags

7.6.I