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
Natali [406]
3 years ago
15

Let X be the number of purchases that Fred will make on the online site for a certain company (in some specified time period). S

uppose that the PMF of X is P(X = k) = e-\lambda?k/k! for k = 0, 1, 2,…. This distribution is called the Poisson distribution with parameter ?, and it will be studied extensively in later chapters.(a) Find P(X ? 1) and P(X ? 2) without summing infinite series.(b) Suppose that the company only knows about people who have made at least one purchase on their site (a user sets up an account to make a purchase, but someone who has never made a purchase there doesn't appear in the customer database). If the company computes the number of purchases for everyone in their database, then these data are draws from the conditional distribution of the number of purchases, given that at least one purchase is made. Find the conditional PMF of X given X ? 1. (This conditional distribution is called a truncated Poisson distribution.)
Mathematics
1 answer:
Mrac [35]3 years ago
6 0

Answer: ???

Step-by-step explanation:

You might be interested in
A bag of 100 tulip bulbs purchased from a nursery contains 40 red tulip​ bulbs, 20 yellow tulip​ bulbs, and 40 purple tulip bulb
deff fn [24]

A) 40 out of 100 are red.

The probability would be 40/100, which reduces to 2/5

B) 40 out of the 100 are purple.

 The probability would be 40/100, which reduces to 2/5

C) the two probabilities are the same.

7 0
3 years ago
Which of the following points is NOT visible if the viewing window of a graphing utility is set at:
Arte-miy333 [17]

The points D(-7, 5), E(-8, -3), and H(10, -5) will not be visible the answers are D, E, and H.

<h3>What is graphing utility?</h3>

A graphing calculator is a portable computer that can plot graphs, solve multiple equations at once, and carry out other variable-related activities.

We have points shown in the coordinate plane.

As the window of a graphing utility is set at:

X(min) : -6

X(max): 6

Y(min) : -6

Y(max) : 6

The points out of 6 will not be visible.

We can draw a square as shown in the attached picture.

The points D(-7, 5), E(-8, -3), and H(10, -5) will not be visible.

Thus, the points D(-7, 5), E(-8, -3), and H(10, -5) will not be visible the answers are D, E, and H.

Learn more about the graphing utility here:

brainly.com/question/1549068

#SPJ1

3 0
1 year ago
Audrey owns 25 books, but only 18 books fit on the shelf. How many books did not make it on the shelf?
jeyben [28]
The answer is seven books

3 0
3 years ago
Read 2 more answers
What is the answer to 2+5(8-5)=?
VashaNatasha [74]

Answer:

17

Step-by-step explanation:

2+5(8-5)

2+(5×8)-(5×5)

2 +40-25

42-25

=17

4 0
2 years ago
Read 2 more answers
Yesterday, sam had 146 baseball cards. today, he gave d away. Using d, write an expression for the number of cards same has left
Korvikt [17]
146-d=x is the answer
4 0
3 years ago
Other questions:
  • What is the product of 4x 3y(-2x 2y)?
    5·1 answer
  • HELP!!!!!14. 4e2x – 3 = 12 solve for x leave explination will mark brainliest
    7·1 answer
  • I need help on this question plz
    8·1 answer
  • Brody wants to build a model ship. He has already saved $30 for the materials and plans. The materials cost $24.89 and the plans
    13·1 answer
  • A new freezer costs $500 plus $0.20 a day to operate. An old freezer cots $20 plus $0.50 a day to operate. After how many days i
    5·1 answer
  • An IAB study on the state of original digital video showed that original digital video is becoming increasingly popular. Origina
    8·1 answer
  • 7/8 x c for c =8. How do I figure out the answer to this problem?
    5·1 answer
  • A pair of parallel lines is intersected by a transversal. Select each statement that can be used to show that ∠4 is congruent to
    14·2 answers
  • A circular flower bed is 24 m in diameter and has a circular sidewalk around it 3 m wide. Find the area of the sidewalk in squar
    7·1 answer
  • Suppose that weight of adolescents is being studied by a health organization and that the accompanying tables describes the prob
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!