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
KonstantinChe [14]
3 years ago
8

7. In a state lottery, a player must choose 8 of the numbers from 1 to 40. The lottery commission then performs an experiment th

at selects 8 of these 40 numbers. Assuming that the choice of the lottery commission is equally likely to be any of the 40 8 combinations, what is the probability that a player has (a) all 8 of the numbers selected by the lottery commission
Mathematics
1 answer:
Vlad1618 [11]3 years ago
5 0

Answer:a) P(8 of the players numbers are drawn)=1.3×10^-8

b) P(7 of the players number are drrawn)=3.33×10^-c) P(at least 6 of the players number were drawn)=1.84×10^-4

Step-by-step explanation:

Players has 8 combinations of numbers from 1-40. The outcome S contains all the combinations of 8 out of 40

a) P(8 of the players numbers are drawn)= 1/40/8= 1.3×10^-8

There are one in hundred million chances that the draw numbers are precisely the chosen ones.

b) Number of ways of drawing 78 selected numbers from 1-40=8×(40-7)

8×32

P(7 of the players number are drawn)=8×32/40 =3.33×10^-6.

There are approximately 300,000 chances that 7 of the players numbers are chosen

c) P(at least 6 players numbers are drawn)= 32/2×(8/6) ways to draw.

P(at least 6 players numbers are drawn)=P(all 8 chosen are drawn)+P(7 players numbers drawn)+P(6 chosen are drawn) = 1+ 8 x32/40/8 +[8\6 ×32/2]

P(at least 6 players numbers are drawn) = 1.84×10^-4.

There are approximately 5400chances that at least6 of the numbers drawn are chosen by the player.

You might be interested in
Converges or Diverges: Please help me​
bagirrra123 [75]

Use a/ 1-r

Where a = 18 and r = 1.2

18/ 1 - 1.2 = 18/-.2 = -90

Because the answer is below 1. The sum does not exist therefore it diverges.

8 0
3 years ago
The answer please answer
strojnjashka [21]
Separate the shape in to separate rectangles

Then Separately find the areas of the rectangles

Answer will be the sum of all areas

Which = d) 109
5 0
3 years ago
The mean income for people in a certain city (in thousands of dollars) is 37 with standard deviation 80 (thousands of dollars).
Georgia [21]

Answer:

Step-by-step explanation:

The mean income for people in a certain city (in thousands of dollars) is 37 with standard deviation 80 (thousands of dollars). A pollster draws a sample of 45 people to interview.

A. What is the probability that the mean income of the sample people is more than 24 (thousands of dollars)?

B. What is the probability that the sample mean income is between 41 and 45?

C) Find the 80th percentile of the sample mean.

D) Would it be unusual for the sample mean to be less than 38?

E) Do you think it would be unusual for an individual to have an income of less than 38? Explain.

5 0
2 years ago
Solve:<br> 3(x - 2) = 12
Alecsey [184]

Answer:

x=6

Step-by-step explanation:

3(x-2)=12

divide both sides by 3

x-2=4

add 2 to both sides

x-2+2=4+2

combine like terms

x=6

7 0
2 years ago
Read 2 more answers
Order the decimals least to greatest
san4es73 [151]

Answer:

It already is in the order.

-1.4, -1.38, -0.5, 0.76, 1.9

7 0
3 years ago
Other questions:
  • Hi Guys
    14·2 answers
  • Express 0.09390.0939 as a fraction.
    7·2 answers
  • Which one of the following measurement represents the longest distance 5m, 10cm, 50mm, 1km
    14·1 answer
  • -6.8-c divided 1.2=-2.9
    15·1 answer
  • Of all the students in the school band, 6 play the trumpet. They represent 10% of the total number of students playing in the ba
    10·2 answers
  • Stefan bought 2 turkey sandwiches and 5 ham sandwiches for a total cost of $40.50. Nancy bought 4 turkey sandwiches and 1 ham sa
    13·1 answer
  • Whoever gets the specific and correct answer will get Brainlist.<br> Goooood luckkk &lt;3
    14·1 answer
  • The same honey is sold in two different size jars.
    9·1 answer
  • Help i only have a day. 5% of what number is 12? Round your answer to the nearest tenth place if necessary. (Use any method to s
    5·1 answer
  • Jane has ​$1 and 9 quarters in her pile. Brody has 13 quarters in his pile. If Jane gives Brody ​$1 and Brody gives Jane 4 quart
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!