1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mestny [16]
3 years ago
14

A person has a 30 percent chance of winning on a scratch-off lottery ticket. What is the probability she first wins of the fifth

ticket
a. (5/1 ) (0.30)3 (0.70).
b. (5/4 ) (0.70)3 (0.30).
c. (0.70)^4 (0.30).
d. (0.30)^3 (0.70).
e. 0.30.
Mathematics
1 answer:
garik1379 [7]3 years ago
6 0

Answer: (c)

Step-by-step explanation:

Given

A person has a 30% chance of winning a lottery ticket.

Probability of not getting the lottery ticket is 70%

For person to win at fifth ticket, it must fail in first four

So, the probability associated with it is

\Rightarrow P=(0.70)\times (0.70)\times (0.70)\times (0.70)\times (0.30)\\\\\Rightarrow P=(0.70)^4\cdot (0.3)

Hence, option (c) is correct.

You might be interested in
Suppose we choose7 objects without replacement from 9 objects
stiks02 [169]

Answer:

<h2>181 440</h2>

Step-by-step explanation:

We have 9 choices for Choosing the first object

              8 choices for Choosing the 2nd object

              .

              .

              .

             3 choices for Choosing the seventh object

Therefore if we want to choose7 objects without replacement from 9 objects we have : 9×8×7×6×5×4×3 = 181 440

Also ,we can calculate it this way :

9P7 = 181 440

7 0
2 years ago
Seven subtracted from c is less then -18: translate into an inequality
777dan777 [17]

Answer:

c - 7 < -18

Step-by-step explanation:

Seven subtracted from c :   c - 7

c - 7 < -18

3 0
3 years ago
Mandvil has one standard quarter and one special quarter with a Head on both sides. He selects one of these two coins at random,
Lana71 [14]

The probability that he selected the special quarter is 87.5%.

<h3><u /></h3><h3><u>Probability</u></h3>

Given that Mandvil has one standard quarter and one special quarter with a Head on both sides, and he selects one of these two coins at random, and without looking at it first, he flips the coin three times, to determine, if he flips a Head three straight times, what is the probability that he selected the special quarter, the following calculation must be made:

  • 1 - (standard quarter) = X
  • 1 - (0.50^3) = X
  • 1 - 0.125 = X
  • 0.875 = X
  • 0.875 x 100 = 87.5

Therefore, the probability that he selected the special quarter is 87.5%.

Learn more about probability in brainly.com/question/24217562

3 0
2 years ago
Noel works as a driver for a transportation company. On average, he drives 152 hours to make 19 successful deliveries. Assume th
astra-53 [7]
It would be A bc u just do 152 divided by 19
6 0
3 years ago
Read 2 more answers
Draw and label a rectangular prism that has a surface area of 96 square meters.
Mashcka [7]
Basically what you need to do is draw 4 congruent rectangles and 2 comgriemt squares (The six sides of a rectangular prism). The sum of the area of these six quadrilaterals should equal 96. This would be my thought process.

Step 1: Sketch a Rectangular Prism

Step 2: Make some educated guesses on some possible side measurements for the quadrilaterals that form the prism.

Step 3: Guess and Check until the amount equals 96.

So we can guess that the sides of the rectangle might equal 2 and 3 units.

This would be 6 for the area. Times 4 for each of the 4 Rectangles. (24) and add the area of the ends of the prism (2*2*2) which is 8 and you will get 32.

Since we are looking for a surface area of 96 and not 32, we can assume that a 3*2*2 prism is not what we need. So we can try again with other values.

Let's try 6*3*3. 6*3*4 for the four rectangles plus 3*3*2 for the ends.
3 0
3 years ago
Other questions:
  • How to find overall range
    10·1 answer
  • Amaya's test scores in Algebra 1 are 48 and 61. She has one more test left and wants to earn a D for the course, which is from 6
    13·1 answer
  • Kindly Only Answer if you know how to do this problem:
    15·1 answer
  • 12. What is the perimeter of a football field measuring 360 feet by 160 feet?
    7·2 answers
  • Solve.
    5·1 answer
  • an apple with a mass of 0.95 kilograms hangs from a tree branch 3.0 meters above the ground. what is the potential energy of the
    6·2 answers
  • HURRY HELP ASAPPP Question 23 of 25
    13·1 answer
  • Which equation has the solution n = 11?
    10·1 answer
  • Plz help me with this question!
    11·2 answers
  • Please help me find the y intercept! (show work)
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!