A bag contains 14 blue marbles and 14 purple marbles.

Complete the following prompts.

(4 points)
How many marbles are in the bag?
marbles

Determine the probability of drawing a purple marble from a bag. Enter the probability as a fraction (simplified of course), decimal, and percent.

Fraction:


Decimal:

Percent:
%

Question 2
Which description of the likelihood best describes randomly drawing a purple marble?

(1 point)
Responses

certain

likely

neither unlikely nor likely

not likely

1 answer

Total Number of Marbles:

To find the total number of marbles in the bag, we add the number of blue marbles and purple marbles:

  • Blue marbles: 14
  • Purple marbles: 14

Total marbles = 14 + 14 = 28 marbles


Probability of Drawing a Purple Marble:

The probability of drawing a purple marble can be calculated by dividing the number of purple marbles by the total number of marbles.

  • Number of purple marbles: 14
  • Total number of marbles: 28

Fraction: \[ \text{Probability (Fraction)} = \frac{\text{Number of purple marbles}}{\text{Total number of marbles}} = \frac{14}{28} = \frac{1}{2} \]

Decimal: \[ \text{Probability (Decimal)} = \frac{1}{2} = 0.5 \]

Percent: \[ \text{Probability (Percent)} = 0.5 \times 100 = 50% \]


Summary of Probability:

  • Fraction: \(\frac{1}{2}\)
  • Decimal: \(0.5\)
  • Percent: \(50%\)

Question 2: Likelihood of Drawing a Purple Marble

Since the probability of drawing a purple marble is 50%, the best description of the likelihood of randomly drawing a purple marble would be:

Response: neither unlikely nor likely.