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
fredd [130]
3 years ago
13

The manager of a video store has compiled the following table, which gives the probabilities that a customer will buy 0, 1, 2, 3

, or 4 DVDs. How many DVDs can a given customer be expected to buy? DVDs - 0 1 2 3 4 Probability - .42 .36 .14 .05 .03
Mathematics
1 answer:
hram777 [196]3 years ago
5 0

Answer:

0.91 DVDs

Step-by-step explanation:

The expected number of DVDs is the sum of products of the number of DVDs and their probability:

  E(n) = 0·0.42 + 1·0.36 + 2·0.14 + 3·0.05 + 4·0.03

  = 0 + 0.36 + 0.28 + 0.15 + 0.12

  = 0.91

A given customer can be expected to buy 0.91 DVDs.

You might be interested in
Keisha is making potato casserole
lord [1]

Answer:

4 1/2 I think

Step-by-step explanation:

I think but I'm not for sure

4 0
3 years ago
How can numbers be expressed, ordered and compared?
USPshnik [31]
Numbers can be expressed, ordered and compared by a lot of mathematical principles, properties, models and paradigms. There are different properties of numbers to associate, group and distribute numbers. For example commutative property of addition, 1 + 2 = 3 can be 3 = 1 + 2. Moreover, numbers can be expressed by mathematical form, thus 100 wherein 1 is in the place order of hundreds. And so on… other examples can be mathematical symbols or inequality to compare numbers. For example, 1 > 2. One is less than 2.



6 0
3 years ago
Can someone help please
xxMikexx [17]
D- It is an enlargement with a scale factor greater than 1.

From the pre-image to the image, the scale factor is 3.
5 0
3 years ago
A rock drops from a height of 60m. how long does it take for it to hit the ground?
laila [671]

To solve for the time an object takes to hit the ground, the equation

<em>y</em> <em>= y₀ + v₀t + ½gt²</em>, or just <em>0 = y₀ +½gt²</em> since there is no initial velocity and the final y position is 0 (since it is on the ground). Therefore, <em>t = (−2y₀/g)^½.</em>

(-2*60/-9.8)^½ = 3.50 seconds.

<em />

8 0
3 years ago
Which number is a factor of 12, but not a multiple of 6?
BlackZzzverrR [31]
4
4*3 is 12 but 4 is not a multiple of 6 

6 0
3 years ago
Read 2 more answers
Other questions:
  • -x&lt;-29 please solve
    6·2 answers
  • Help please i appreciate it
    9·1 answer
  • a roll of paper is 11.8 inches by 78.7 inches you need cover wall that is 28 inches by 85 inches how many rolls of paper is need
    13·1 answer
  • 95, 45, 37, 82, 90, 100, 91, 78,67,84,85,85, 82, 91,
    15·1 answer
  • Helpppppp!!’nnnnnnn.
    15·2 answers
  • Write 70 cm as a fraction of 4.2 m. Give your answer in its simplest form.
    10·1 answer
  • Jamiyah and Samantha went to a grocery store and purchased a bag of 39 apples. Let x represent the Jamiyah's portion of the appl
    10·1 answer
  • Quadrilateral HIJK is similar to quadrilateral LMNO. Find the measure of side OL.
    15·1 answer
  • A similar scale model of a building is 12 in tall and 9 in wide. If the actual building is 100 ft tall, how wide is the building
    9·1 answer
  • The Colosseum in Rome, Italy, is about 1,950 years old. The Giza Pyramids in Cairo, Egypt, are about 2,550 years older. How old
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!