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babunello [35]
3 years ago
11

What is the probability that Eric rolls an even number or draws an ace from a standard deck of cards?

Mathematics
1 answer:
finlep [7]3 years ago
5 0
Evidently the quesiton is incomplete.

It is logic that the actions are roll a die and draw a card.

The two events are indepent, so the combined probability is the sum of the individual probabiliites.

Probability = number of positive events / number of possible events

Probability of rolling an even number = number of faces with even numbers / total number of numbers.

Probability of rolling an even number = 3 / 6 = 1/2

Probability of drawing an ace = number of aces in the deck of cards / number of cards

Probability of drawing an ace = 4 / 52 = 1 / 13

Combined probability = 1/2 + 1/13 = (13 + 2) / 26 = 15 / 26

Answer: option D. 15 / 26
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Answer:The answer is B.  I just did it. good luck!

Step-by-step explanation:

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3 years ago
Given the function f(x) = 2/3 * x - 5 , evaluate f(9)
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Answer:

1

Step-by-step explanation:

3 0
4 years ago
Suppose you are going to form a committee of students and faculty. You have 10 total students and 11 total faculty to pick from.
zlopas [31]

Answer:

0.189

Step-by-step explanation:

We are using combination to solve for this.

C(n,r) = nCr = n!/r! (n - r)!

We have 10 total students and 11 total faculty = 21 people

Step 1

Selecting 3 students out of 10 total students

= 10× 9× 8×7×6×5×4×3×2×1/ 3×2×1 × 7×6×5×4×3×2×1/

= 120

Step 2

Select 6 faculty out of 11 faculty

11C6 = 11!/6!(11 - 6)!

= 11!/6! × 5!

= 11×10× 9× 8×7×6×5×4×3×2×1/6×5×4×3×2×1 × 5×4×3×2×1/

= 462

Step 3

Selecting 9 people out of 21 people to form a committee

21C9 = 21!/9!(21 - 9)!

= 21!/9! × 12!

= 293,930

Step 4

The fourth and final step of having a committee of 9 people =

(120 × 462)/293,930

= 55440/293,930

= 0.1886163372

Rounded to 3 decimal places = 0.189

Therefore, the probability that you select 3 students and 6 faculty = 0.189

3 0
3 years ago
PLSSSS HELPPPPPP!!!!!!
IrinaK [193]

Answer:

x=260 texts

Step-by-step explanation:

85=0.25x+20

Subtract 20 from each side.

65=0.25x

Divide both sides by 0.25.

260=x

260 texts plus the $20 flat fee will cost $85.

3 0
3 years ago
Which is the difference quotient of the function f(x) = x² + 3
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Step-by-step explanation:

any girl come on fast...........

8 0
3 years ago
Read 2 more answers
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