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
AURORKA [14]
3 years ago
15

Based on experience, the probability that an incoming email is spam (an undesired message of solicitation) is 38%. If three emai

ls are in my inbox, what is the probability that:A. All three messages are spam.B. At least one of the three messages are spam.C. None of the three messages are spam.
Mathematics
1 answer:
SCORPION-xisa [38]3 years ago
7 0

Answer:

0.0549

0.7617

0.2383

Step-by-step explanation:

Given that:

Probability that incoming email is spam ;

P(spam) = 0.38

If three emails are in my inbox, what is the probability that:

A. All three messages are spam.

P(1st message being spam) * p(second message being spam) * p(3rd message being spam)

= (0.38) * (0.38) * (0.38)

= 0.054872

= 0.0549

B. At least one of the three messages are spam.

1 - p(none of the 3 messages are spam)

P(none of the 3 messages are spam)

P(not spam) = 1 - p(spam) = 1 - 0.38 = 0.62

1 - [P(not spam) * p(not spam) * p(not spam)]

1 - (0.62 * 0.62 * 0.62)

= 1 - 0.238328

= 0.761672

= 0.7617

C. None of the three messages are spam.

P(not spam) = 1 - p(spam) = 1 - 0.38 = 0.62

P(not spam) * p(not spam) * p(not spam)

(0.62 * 0.62 * 0.62)

= 0.238328

= 0.2383

You might be interested in
What are some effects that can occur in a country if large numbers of people are out of work?
krok68 [10]

Answer:

It increases national debt. This happens because the unemployed don't participate in doing taxes because they do not have a job. It also effects other businesses because people with less money won't buy as many things which leads to other companies losing money.

7 0
2 years ago
Last month a Carpenter made five tables this month he made 80% more than that how many tables do the carpenter make this month
Nataliya [291]

Answer:

9 tables

Step-by-step explanation:

5 × 1.8 = 9

to find how many tables he made you have to multiply the number he made by 1, then .(whatever the percent is)

4 0
3 years ago
Read 2 more answers
In determining the quality of the hats in a used-hat bin, a grandmother selects the first four hats she can reach. Which samplin
Sladkaya [172]
B convenience sampling because if it looks bad then she should throw it away but if it looks good then she should keep it 
3 0
3 years ago
If g( n ) = 3 n - 2, then what is the value of g(10)?<br><br> 4<br> 28<br> 308<br> 24
tino4ka555 [31]

Answer:

28

Step-by-step explanation:

g(10)=3n-2

10=n

3(10)-2

REMEMBER PEMDAS

Parentheses, Exponent, Multiplication, Division, Addition, and Subtraction.

3(10)=30

30-2=28

Hope this helps have a wonderful evening!

8 0
3 years ago
An object moves along a coordinate axis so that its position at time t is given by s(t)=t3. Estimate its instantaneous velocity
Mademuasel [1]

If the position at time <em>t</em> is

<em>s(t)</em> = (1 m/s³) <em>t</em> ³

then the average velocity over <em>t</em> = 2 s and <em>t</em> = 2.001 s is

<em>v</em> (ave) = (<em>s</em> (2.001 s) - <em>s</em> (2 s)) / (2.001 s - 2 s)

<em>v</em> (ave) = ((1 m/s³) (2.001 s)³ - (1 m/s³) (2 s)³) / (2.001 s - 2 s)

<em>v</em> (ave) ≈ (8.01201 m - 8 m) / (0.001 s)

<em>v</em> (ave) ≈ 12.006 m/s

6 0
2 years ago
Other questions:
  • The value of a car is inversely proportional to its age. if a car is worth ​$49004900 when it is 55 years​ old, how old will it
    15·1 answer
  • MATH<br><br>ANSWER and I will give you brainiliest ​​
    6·2 answers
  • Suppose that you have 10 cards. 4 are green and 6 are yellow. The 4 green cards are numbered 1, 2, 3, and 4. The 6 yellow cards
    8·1 answer
  • HELP PLEASE I NEED HELP ON THIS PROBLEM "Three more than 8 times a number is -39.Find the number.
    14·1 answer
  • The incenter of a triangle is the intersection point of the_____ bisectors
    5·2 answers
  • What is divided by 2? a. 1 1/2 b. 3/4 c. 2/3 d.1/2
    13·1 answer
  • What is the surface area of this cone?
    15·1 answer
  • What value of k will make this relationship NOT a function?
    11·1 answer
  • Pls help fast i need this done
    14·1 answer
  • Look at the graph below. What is the slope of the line?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!