Questions: The accompanying figure shows the 36 equally likely outcomes when two balanced dice are rolled. Complete parts (a) through (d) below.
Click the icon to view the figure that shows the 36 equally likely outcomes when two balanced dice are rolled.
The probability that the sum of the dice is even is 0.5
(Type an integer or a decimal. Round to three decimal places as needed.)
c. Determine the probability that the sum of the dice is 10 or 5.
The probability that the sum of the dice is 10 or 5 is
(Type an integer or a decimal. Round to three decimal places as needed.)
Transcript text: The accompanying figure shows the 36 equally likely outcomes when two balanced dice are rolled. Complete parts (a) through (d) below.
Click the icon to view the figure that shows the 36 equally likely outcomes when two balanced dice are rolled.
The probability that the sum of the dice is even is 0.5
(Type an integer or a decimal. Round to three decimal places as needed.)
c. Determine the probability that the sum of the dice is 10 or 5 .
The probability that the sum of the dice is 10 or 5 is $\square$
(Type an integer or a decimal. Round to three decimal places as needed.)
Solution
Solution Steps
To determine the probability that the sum of the dice is 10 or 5, we need to count the number of outcomes where the sum is 10 or 5 and then divide by the total number of possible outcomes (which is 36).
Step 1: Total Outcomes
When rolling two balanced dice, the total number of possible outcomes is given by \( 6 \times 6 = 36 \).
Step 2: Favorable Outcomes for Sum of 10
The pairs of dice that yield a sum of 10 are:
\( (4, 6) \)
\( (5, 5) \)
\( (6, 4) \)
Thus, the number of favorable outcomes for a sum of 10 is \( 3 \).
Step 3: Favorable Outcomes for Sum of 5
The pairs of dice that yield a sum of 5 are:
\( (1, 4) \)
\( (2, 3) \)
\( (3, 2) \)
\( (4, 1) \)
Thus, the number of favorable outcomes for a sum of 5 is \( 4 \).
Step 4: Total Favorable Outcomes
The total number of favorable outcomes for either a sum of 10 or 5 is:
\[
3 + 4 = 7
\]
Step 5: Probability Calculation
The probability \( P \) that the sum of the dice is either 10 or 5 is calculated as:
\[
P = \frac{\text{favorable outcomes}}{\text{total outcomes}} = \frac{7}{36} \approx 0.1944
\]
Final Answer
The probability that the sum of the dice is 10 or 5 is approximately \( \boxed{0.194} \).