resolving-chaos
Calculators
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
resolving-chaos
resolving-chaos
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
MATH SOLVE
Home
An article in Information Security Technical Report ["Malicious Software—Past, Present and Future" (2004, Vol. 9, pp. 6–18)] provided the following data on the top ten malicious software instances for 2002. The clear leader in the number of registered incidences for the year 2002 was the Internet worm "Klez," and it is still one of the most widespread threats. This virus was first detected on 26 October 2001, and it has held the top spot among malicious software for the longest period in the history of virology. Place Name % Instances 1 I-Worm.Klez 46.30% 2 I-Worm.Lentin 17.83% 3 I-Worm.Tanatos 5.21% 4 I-Worm.BadtransII 1.30% 5 Macro.Word97.Thus 1.80% 6 I-Worm.Hybris 0.11% 7 I-Worm.Bridex 0.35% 8 I-Worm.Magistr 0.02% 9 Win95.CIH 0.24% 10 I-Worm.Sircam 26.84% Suppose that 20 malicious software instances are reported. Assume that the malicious sources can be assumed to be independent. (a) What is the probability that at least one instance is "Klez"? Round your answer to four decimal places (e.g. 98.7654). (b) What is the probability that five or more instances are "Klez"? Round your answer to four decimal places (e.g. 98.7654). (c) What is the mean of the number of "Klez" instances among the 20 reported? Round your answer to two decimal places (e.g. 98.76). (d) What is the standard deviation of the number of "Klez" instances among the 20 reported? Round your answer to two decimal places (e.g. 98.76).
General
2 months ago
Find the number that is 18697 less than 25689
General
2 months ago
Twice a number decreased by 8 is 2 less than half the number
General
2 months ago
hello:) anyone able to explain how to solve the equestrian for part (d) ? Thank youu
General
2 months ago
In britain a pint of beer costs 65p. In France, a third of a liter of the same beer costs 4 francs. If 1 pint is approximately 0.568 liter, calculate the cost of a pint of beer bought in France.
General
2 months ago
Rory records the percentage of battery life remaining on his phone throughout a day. The graph represents the percentage of battery life remaining after a certain number of hours.A graph titled Phone Battery Life. The horizontal axis shows Elapsed Time (hours) numbered 2 to 20, and the horizontal axis shows Battery Life (%) numbered 10 to 120. A line begins at 100% in 0 hours, to 20% in 8 hours, to 100% from 10 to 12 hours, to 60% in 16 hours, to 100% from 17 to 20 hours.At which times could Rory's phone have been plugged into the charger? Select three options.6 hours9 hours11 hours14 hours19 hours
General
2 months ago
Jason’s bank account balance was $300. He paid of his bills. Now, his account balance is -$50. Which equation can be used to find x, the total dollar amount of his bills?
General
2 months ago
Please help me determine the equation of the line in slope intercept form and show all work. A line that is perpendicular to the liney = (1/2)x + 10 that passes through thepoint (50,60).
General
2 months ago
Need help on 9 don’t know if I did it right or not but I need help :p
General
2 months ago
1.Select the conclusion of the conditional statement.If you make an omelet, then you will need two eggs2.Use the conditional statement to answer the question.If an animal is an insect, then the animal has six legs.What is the contrapositive of the statement?A)If an animal is an insect, then the animal does not have six legs.B)If an animal has six legs, then the animal is an insect.C)If an animal is not an insect, then the animal does not have six legs.D)If an animal does not have six legs, then the animal is not an insect.3.Use the conditional statement to answer the question.If an angle is a right angle, then the angle measures 90°.Are the statement and its contrapositive true?A)The statement is true, but the contrapositive is false.B)The statement is false, but the contrapositive is true.C)Both the statement and its contrapositive are true.D)Both the statement and its contrapositive are false.4.Use the conditional statement to answer the question.If today is Monday, then yesterday was Sunday.Can the statement be written as a biconditional statement and why?A)Yes, because the statement and its converse are both trueB)No, because the statement is false, but its converse is trueC)No, because the statement is true, but its converse is falseD)No, because the statement and its converse are both falseIs each biconditional statement true or false?Select True or False for each statement.True FalseA number is a multiple of 3 if and only if the number is odd. A number is even if and only if the number is divisible by 2. A number is prime if and only if the number is not a multiple of 4.
General
2 months ago
The perimeter of a quadrilateral (four-sided polygon) is 41 inches. The longest side is twice as long as the shortest side. The other two sides are equally long and are 3 inches longer than the shortest side. Find the length of all four sides.
General
2 months ago
Everybody's blood pressure varies over the course of the day. In a certain individual the resting diastolic blood pressure at time t is given by B(t) = 90 + 3 sin(πt/12), where t is measured in hours since midnight and B(t) in mmHg (millimeters of mercury). Find this person's diastolic blood pressure at the following times. (Round your answers to one decimal place.) (a) 6:00 A.M. mmHg (b) noon mmHg (c) 6:00 P.M. mmHg
General
2 months ago
What is the distance between point A -1,3 and point B -7,3
General
2 months ago
so i have to use the empirical rule thing to solve this but i need help showing the workA shoe manufacturer collected data regarding men’s shoe size and found that they are normally distributed. If the mean shoe size is 11 and the standard deviation is 1.5, find the probability that a man’s shoe size is greater than or equal to 12.5.
General
2 months ago
You are a sales rep, and receive phone messages that 2 of your 4 major customers need to talk to you about making a major purchase. Unfortunately, neither one identified themselves or left a callback number. So you will call them back in no particular order until you find one of the interested customers.Let X= {1, 2, 3, 4} stand for which of your calls finally talks to one of the interested customers.a) Write down a table of the probability mass function p(x) = P(X = x) for which call reaches the first interested customer.b) Calculate the expected number of calls E(X) you will have made when you talk to the first interested customer.
General
2 months ago
For 300 trading days, the daily closing price of a stock (in $) is well modeled by a Normal model with mean $196.99 and standard deviation $7.12. According to this model, what is the probability that on a randomly selected day in this period the stock price closed as follows.a) above 211.23?b) below $204.11?c) between 182.75 and $211.23?d) Which would be more unusual, a day on which the stock price closed above $208 or below $185?a).......%(Round to one decimal place as needed.)b)........%(Round to one decimal place as needed.)c).......%(Round to one decimal place as needed.)d) Choose the correct answer below.A. The more unusual day is if the stock closed above $ 208 because it has the largest absolute z-score.B. The more unusual day is if the stock closed above $208 because it has the smallest z-score.C. The more unusual day is if the stock closed below $185 because it has the smallest z-score.D. The more unusual day is if the stock closed below $185 because it has the largest absolute z-score.
General
2 months ago
How do I solve x in a mathematics question
General
2 months ago
Please help.me as soon as possible thank you
General
2 months ago
Frank has four different credit cards, the balances and interest information of which are outlined in the table below. He would like to consolidate his credit cards to a single credit card with an APR of 18% and pay off the balance in 24 months. What will his monthly credit card payment be? Credit Card Balance APR A $2,380 19% B $4,500 15% C $1,580 17.50% D $900 21% a. $390.00 b. $462.91 c. $467.29 d. $52.00
General
2 months ago
The probabilty that husband and wife will be a live is 30 years from now is 0.6 and 8.0 find the probabilty that in 30 years time a) both will be a live b) nether will be die c) at least one will be a live
General
2 months ago
Previous
1
2
3
4
5
6
7
8
9
10
11
12
13
Next