Questions Asked on
May 16, 2020

probability
13 people study French, 15 people study German and there are 21 people in total. What is probability to chose person who takes both of the languages?
asked by help 
Chemistry
If milk has a density of 1.03 g/mL, what is the mass of 6.00 qt, reported in kilograms?
asked by HARSHIN 
Probability
Let X1 , X2 , X3 be i.i.d. Binomial random variables with parameters n=2 and p=1/2 . Define two new random variables Y1 =X1−X3, Y2 =X2−X3. We further introduce indicator random variables Zi∈{0,1} with Zi=1 if and only if Yi=0 for i=1,2 . Calculate
asked by AK 
maths
With each ntrough there are n balls, each with integer diameter at most n. Two or more balls may have the same diameter. They are rolled down the trough one at a time, not necessarily in size order. If a ball drops through a hole, it triggers a trapdoor
asked by oscar 
Algebra
How many 4digit multiples of 7 are there?
asked by Helen 
Mathematics
I am studying for my exams and do not know if I tackled correctly this word problem. Would appreciate any help. Thank you "Tony and Doris wish to fence off part of their garden to create a rectangular enclosure for their dogs. One side of the enclosure
asked by Joann 
History
How did the Chinese government react to the fall of Communist Russia? A. When Soviet states withdrew from the USSR, Chinese diplomats sought to acquire Russian states located along the Chinese border. B. The Chinese government predicted that its own system
asked by Ally 
Chemistry
The method of standard additions was used to determine nitrite in a soil sample. A 1.00mL portions of the soil extract sample was transferred to four 25mL volumetric flasks. To each flask, increment volumes of a 1.00 x103 M nitrite was added according
asked by The anonymous 
Mathematics
A man left of his estate in kerugoya to his wife and to each of his two sons the remainder was to be shared equally among his six brothers if the estate was worth shs 3456000 how much did each of those people get?
asked by Mariam 
Probability
Let X and Y be independent random variables with zero means, and variances 1 and 2, respectively. Let U=X+Y and V=X+2Y . Find the coefficients a and b of the Linear Least Mean Squares (LLMS) estimator VˆL=aU+b of V based on U . find a and b.
asked by ram121 
mathematics
1 What is the chance that you pick a vowel from the name DELCAMP if you pick at random? 1 What's the chance that you pick a consonant from the name MONROY if you pick at random? REDUCE YOUR FRACTION. Y is a consonant is this case. 1 What's the chance of
asked by Gavin 
Math
x^13 / x^2 (This is a fraction) A: x^13/2 B: x^15 C: x^11 D: x^26
asked by Hola Amigo 
Math
Write an algorithm prompts a user to enter 15 masses of goats and display average mass
asked by madalena 
Probability
Problem 1. Starting at time 0, a red bulb flashes according to a Poisson process with rate λ=1 . Similarly, starting at time 0, a blue bulb flashes according to a Poisson process with rate λ=2 , but only until a nonnegative random time X , at which point
asked by AK 
science
in the equation, KCL+Pb(No3)2+PbCl2. what is reducing and what is being oxidized
asked by Anonymous 
Mathematics
Construct a triangle ABC such that BA=10cm
asked by Hannah 
Physics
An object of mass 9.0 kg is moving due west with a uniform speed of 4.0 m/s. It suddenly explodes into two parts having masses of 6.0 kg and 3.0 kg. Just after the explosion, the 3.0 kg mass has a velocity of 15 m/s due west relative to the Earth's
asked by Rohan 
English
I have to make a comic strip based on any episode of Tom Sawyer book of class7 NCERT
asked by Maitri 
Algebra
Let x, y, and z be distinct nonzero real numbers and x + (1/y) = y + (1/z) = z + (1/x) Find all possible values of xyz. I don't even know where to start! Any help is appreciated, thank you :)
asked by Dog_Lover 
probability
Tickets numbered from one to 40 are mixed up and one is drawn. What is the probability that number is divisible by 3 or 5? What is the probability that number is divisible by 3 and 5?
asked by help 
Probability
Let X1 , X2 , X3 be i.i.d. Binomial random variables with parameters n=2 and p=1/2 . Define two new random variables Y1 =X1−X3, Y2 =X2−X3. We further introduce indicator random variables Zi∈{0,1} with Zi=1 if and only if Yi=0 for i=1,2 . Calculate
asked by ram121 
History
what is Vj day : Victory Over Japan?
asked by ariana 
Math
In how many ways can a 6 people sit in a toboggan (sled) if only 2 can drive?
asked by Skye 
history
To boost wartime production and help the Allies, the War Manpower Commissionrecruited women for jobs forced women to work at home encouraged soldiers to return home to work conscripted more soldiers into the military
asked by Hola Amigo 
English
In “Brave New World" what are the ways of obtaining instant gratification aside from soma?
asked by gm 
chemistry
How is column chromatography and planar chromatography methods are performed?
asked by Robbie 
chemistry
I have a question in one of my assignments but I don't know how to answer it, the question is "The bigger the ion, the slower. The smaller the ion, the faster mobility. Which side of the 0.5 M NaBr  0.5 M KBr junction will be more negative? Explain" Thank
asked by sette 
math
Tutors on jiskha help you 57 times and there are over 10 tutors. how many questions did botaman ask. answer= jiskha is the best. you are always helping people 24/7 so if you dont mind me asking, how are you? are you stressed? do you enjoy what you do? you
asked by botamam 
physics
A disk having moment of inertia $$100kg\cdot m^2$$ is free to rotate without friction, starting from rest, about a fixed axis through its center. A tangential force whose magnitude can range from \(F = 0\) to \(F = 50.0\) N can be applied at any distance
asked by mcway 
Science
In modern injection molding units, why is a reciprocating screw used instead of a plunger? Give 3 reasons how this advantage is achieved.
asked by hewhomustbenamed82 
molecular biology
Experiments have shown that a defective gene gives a defective enzyme. Hence there is argument of that one gene is responsible for making one enzyme. Discuss whether this statement is correct or not. Give ONE example to support.
asked by Alex 
biology
Gilbert is doing a SDSPAGE experiment and he cannot find sodium dodecyl sulfate (SDS) for the experiment. He wants to use the household detergent to replace SDS and he said that the cancer cells are easily being lysed even by household detergent. Will he
asked by Joe 
Geometry
What is the maximum ha (vertical height) of the ABC triangle given its perimeter = 19 m and hb = 7 m (lateral height)?
asked by Jesus 
Probability
Problem 1. Note: You may find the following useful for this problem. For i.i.d. random variables Xi and a nonnegative random variable N that is independent of all the Xi 's: E[∑i=1NXi] = E[N]E[X1] Var[∑i=1NXi] = E[N]Var[X1]+(E[X1])2Var(N). Each phone
asked by AK 
Probability
Let X and Y be jointly continuous nonnegative random variables. A particular value y of Y is observed and it turns out that fXY(x∣y)=2e−2x , for x≥0 . Find the LMS estimate (conditional expectation) of X . unanswered Find the conditional mean
asked by AK 
Probability
Let X and Y be independent random variables with zero means, and variances 1 and 2, respectively. Let U=X+Y and V=X+2Y . Find the coefficients a and b of the Linear Least Mean Squares (LLMS) estimator VˆL=aU+b of V based on U . a= unanswered b= unanswered
asked by AK 
math
A regular deck of cards has total of 52 cards. (Note: Aces count as 1.) If one card is drawn at random from the deck, find the probability of the following events: a It is a diamond
asked by help 
Mathematics
u=v+2t
asked by Anonymous 
Mathematics
u=v+2t make t the subject of the formula
asked by Anonymous 
Mathematics
Solve 2x+7>+x +19 and can you do the same if 2 was 3? 2nd question is write an expression if 3 was open inequality and line continues past negative 5
asked by Jacky 
Probability
Let X and Y be independently random variables, with X uniformly distributed on [0,1] and Y uniformly distributed on [0,2] . Find the PDF fZ(z) of Z=max{X,Y} 1. For z2 : find fZ(z) 2. For 0≤z≤1 : find fZ(z)
asked by ram121 
Math
Let X and Y be independently random variables, with X uniformly distributed on [0,1] and Y uniformly distributed on [0,2] . Find the PDF fZ(z) of Z=max{X,Y} find fZ(z) 1. For z2 : 2. For 0≤z≤1 : 3. For 1≤z≤2 :
asked by ram121 
Science
An acrobat performs with a swing, as shown in the diagram . Which of these most likely happens as the acrobat moves from Point 1 to Point 2? A. Potential energy decreased and kinetic energy increases. B. Potential energy increases and kinetic energy
asked by nonymouse 
history
what was a big difference between the Texas Constitution of 1836 and the Texas Constitution of 1845
asked by Plz help 
Math
convert each measurement to meters liters or grams 8kl
asked by Batman 
Statistics
In a survey conducted to determine the costs of holidays, 196 individuals were randomly sampled. Each was asked to assess the total cost of his or her most recent holiday. The average cost was $1386.
asked by DORU 
Mathematics
Make d the subject of the relation . R= d^2/8h+h/2
asked by Joana 
History
Which is the best description of how climate impacted westward expansion? A) As the region became more and more populated, the way of life of the Native Americans changed. B) Trails through the mountains followed passes that were often impassible during
asked by wade 
Math
Out if 56 coins, 18 are rare. If you select 10 of the coins, what us the probability that all of them are rare ? P(picking rare coin) = 18/56 = 0.3214 q= 1p = 10.3214= 0.6786 , number of trials = 10 a) All rare coins: ncr= 10c10= n!/(r!*(nr) =
asked by Brandon 
Algebra
The amount of eel fishing in Europe fell by 95% from 1980 to 2010. How many eels learn there will be left in 2030, if the percentage decrease per year is unchanged over time.
asked by Mike 
History
What is the significance of Hiroshima and Nagasaki (1945) ???
asked by ariana 
Physics
A car of mass M, traveling at speed v collides headon with a truck of mass 2M & traveling in the opposite direction at the same speed. Both vehicles lock together and come to a stop. Which, if either, has the most momentum upon impact? Which, if either,
asked by Kaia 
psw
Your client is 84 and has rheumatoid arthritis. Each week the RN distributes her medication for each day in a docette. Today your client’s joints seem very inflamed and she asks you to open her docette for her. i need the answer
asked by kaur 
Science
Is gravity a contact or field force?
asked by Pepsi Zero Sugar 
Mathematics
find the first four terms using the binomial theorem 1/(sqrt(x^2  (3/y))
asked by Rethabile Milisi 
Geometry
In right triangle ABC,
asked by Jose 
Physics
What causes the coriolis effect?
asked by Sunita 
Science
Calculate the cost to run a washing machine of 220V with the current of 20A for Two hours, if the price of electricity is 22 cent per kW.h
asked by Pearl