kina
Most popular questions and responses by kina
Probability
1. We have a bag that contains n red balls and n blue balls. At each of 2n rounds we remove one of the balls from the bag randomly, and place it in one of available n bins. At each round, each one of the balls that remain in the bag is equally likely to be
asked on June 14, 2019 
Probability
1. A box contains 20 different balls numbered from 1 to 20 (different balls have different numbers). At each step, we select a ball uniformly at random, record the number on it, and put it back in the box. This experiment is repeated 10 times. Find the
asked on June 14, 2019 
Probability
Amy immigrated to a new city, and would like to make friends with her new neighbours. On any particular day i , she feels shy with probability 1−p ( 0
asked on June 14, 2019 
Probability
Let A be an event, and let IA be the associated indicator random variable: IA(ω)=1 if ω∈A , and IA(ω)=0 if ω∉A . Similarly, let IB be the indicator of another event, B . Suppose that, P(A)=p , P(B)=q , and P(A∪B)=r . 1. Find E[(IA−IB)2] in
asked on June 14, 2019 
Probability
Consider an experiment in which a fair foursided die (with faces labeled 0 , 1 , 2 , 3 ) is rolled once to determine how many times a sixsided die (with faces labeled 1 ,.., 6 ) is rolled. The die rolls are independent. Let X be the total number of times
asked on June 14, 2019 
Probability
Sophia is vacationing in Monte Carlo. On any given night, she takes X dollars to the casino and returns with Y dollars. The random variable X has the PDF shown in the figure. Conditional on X=x , the continuous random variable Y is uniformly distributed
asked on June 22, 2019 
Chemistry
Given N2(g) + 3H2 = 2NH3(g), which scenario will allow you to eventually reach an equillibrium mixture involving these chemicals? A. Place only H2 into a sealed vessel. B.Place only NH3 into a sealed vessel. C.Place only N2 into a sealed vessel. D.All of
asked on October 15, 2012 
Probability
A,B, and C defined on a common sample space, determine whether it is true or false. 1. Suppose that A,B , and C are pairwise independent. Then, A∩C is independent of B . 2. Suppose that A,B, and C are pairwise independent. Then, A,B, and C are
asked on June 15, 2019 
math
what is the value of the 8 in 387?
asked on October 8, 2011 
HINDS CC
HOW MANY GRAMS OF N2O ARE FORMED IF 0.46 OF NH4NO3 IS USED IN THE REACTION
asked on February 9, 2012 
maths
what fraction of metre is 60cm and 75cm?
asked on November 13, 2013 
geography
Hi, I desperately need state assistance in connection with the homework of my Son,Complete a SWOT (Strengths, Weaknesses, Opportunities and Threats) analysis of sea turtles ..I obviously do not expect that someone will do it for him.The problem with the
asked on January 29, 2014 
math
the weight of 3 different pencils is 50g,30g and 40g.Work out their average weight.
asked on October 16, 2013 
science
How to make a food web with at least 4 food chains showing how the eagles depends on other animals?
asked on June 28, 2013 
english
Make up an alliterative headline for each of these newspaper reports.a)A man is attacked by a shark..b)The local library burns down..c)A cat is rescued from a tree by the fire brigade.
asked on May 8, 2013 
math
Write in words the number that is a hundred and fifty times the size of 10..I think this is one hundred and sixty
asked on September 25, 2013 
geometry
What do you notice about lines of symetry in regular polygons?
asked on May 16, 2013 
math
What do you notice about lines of symetry in regular polygons?
asked on May 15, 2013 
english
Write a poem about Christiano Ronaldo...Please help me !!!
asked on March 15, 2013 
history
The entrance to many Egyptian tombs was inscribed with a course or warning,designed to protect the tomb from raiders who might want to steal the treasures within.What would you write to warn off tomb raiders?
asked on October 15, 2011 
math
A whole number which will divide exactly into another whole number.
asked on June 5, 2013 
geometry
The number of lines of symmetry of any regular polygon is equal to the number of sides. Is that correct?
asked on May 17, 2013 
english
A lorry has shed its load of fruit on the motorway.The traffic is a standstill.No one has been hurt. How to write a headline for this report?
asked on May 8, 2013 
math
Your task is to chose at least ONE of the operations(add,substract,multiply or divide)and design a poster that tells someone how to do a calculation in your chosen operation.Do not just do a poster showing a substraction,for example,you need to explain
asked on November 22, 2012 
english
Rewrite this passage using the corect punctuation..one suuny day mrs brown decided to take her family for a picnic in the new forest she made a big pile of sandwiches and put them in a plastic box colin packed some cans of coca cola for the children to
asked on November 8, 2012 
science
write a vocabulary glossary linked to sound.
asked on March 4, 2012 
Science (galaxies and universe)
Studying distant galaxies is described as looking back into the past. What does this mean? (use terms light year, distance, and time in your answer)
asked on November 13, 2016 
english
How to explain the PEE structure?
asked on September 25, 2014 
science
how much energy and joules are in bag of crisps?
asked on September 24, 2014 
maths
what number is fifty nine more than fifty seven..I think is 116.
asked on January 22, 2014 
maths
How many tenths is in 1.9? I think is 19 tenths.
asked on January 22, 2014 
maths
what fraction of 64 seconds is 40 seconds?what fraction of 64 seconds is 56 seconds?
asked on January 22, 2014 
Science
How to complete SWOT analysis of a sea turtles?
asked on January 9, 2014 
maths
0.6+3.9=? quarters I think is 18 but I m not sure..I m only 10 years old.
asked on January 8, 2014 
English
Describe these words using only Three words:radiator,stairs,fire,torch,teacher,school,rabbit,comb,radio,football,camera,toaster...
asked on November 27, 2013 
math
How many quarters are there in 0.5+2?
asked on November 13, 2013 
math
An equailateral triange has a side of 7cm.What is the total distance in centimetres twice round the perimeter of the shape?
asked on November 13, 2013 
math
if a 1/2 kilogram of beef costs £1.60 work out the coast of 3/4 of a kilogram.
asked on October 16, 2013 
math
make one hundred and forty 6 times as large.
asked on October 16, 2013 
English
My Son"s acrostic poem about SEASIDE Summer time is fun Everybody are making sandcastles A lovely picnic is coming Sand is really really hot I saw a ship in the distance Diving is very exiting Exploring for shells in the rock pool.. Damian is 10years
asked on October 5, 2013 
english
How to write a poem about The seaside?
asked on October 4, 2013 
maths
what is the product of three,four and five?
asked on September 25, 2013 
english
How humans impact the coast?
asked on September 19, 2013 
science
A detailed description on the environment the eagle live in:this should include the temperature,vegetation,source of water and climate changes in the habitat.
asked on July 12, 2013 
english
write a newspaper report about ..A lorry has shed load of fruit on the motorway.The traffic is standstill.... i wrote this....................................A lorry has shed its load of fruits while taking action to avoid another car on the M11 motorway
asked on May 11, 2013 
english
Could somebody check this for me please? My name is Damian Donarski I'm ten years old. I live in Bournemouth now,but I was born In Poland. I live here with my family, which has three members my parents and me. I like playing football with my friends. My
asked on May 5, 2013 
english
Write some paragraphs about your own family.
asked on May 1, 2013 
english
How to write a Solar System poem?
asked on November 26, 2012 
History
The entrance to many Egyptian tombs was inscribed with a cource of warning,designed to protect the tomb from raiders who might want to steal the treasures,within.What would you write to warn off tomb raiders?
asked on October 9, 2011 
spanish
How do you say when you want just call me in spanish?,, is cuando tu quierez riqht?
asked on March 23, 2010

physics
PART A  63.7 minutes PART B 4.71 mph PART C 52.2 PART D 5.75
posted on February 1, 2016 
english
I m sorry for that..Thank you for yours help.
posted on September 25, 2014 
english
POINT,EVIDENCE AND EXPLANATION.
posted on September 25, 2014 
Science
Thank you very much..This is my Son homework ..It is very difficult because he is only 10 years old..
posted on January 9, 2014 
maths
Thank you very much!
posted on January 8, 2014 
math
Thank You very much.
posted on October 16, 2013 
math
it is 840.
posted on October 16, 2013 
math
it is 40g..
posted on October 16, 2013 
English
Thank you very much for yours help.
posted on October 5, 2013 
english
My Son"s acrostic poem about SEASIDE Summer time is fun Everybody are making sandcastles A lovely picnic is coming Sand is really really hot I saw a ship in the distance Diving is very exiting Exploring for shells in the rock pool Damian is 10years old,and
posted on October 5, 2013 
maths
one thousand five houndred
posted on September 25, 2013 
maths
1500..I know now..thank you.
posted on September 25, 2013 
maths
Write in words the number that is a hundred and fifty times the size of 10..I think this is one hundred and sixty
posted on September 25, 2013 
math
Its all what I got,and they ask me to put correct word to this definition,so I m thinking that is mean
posted on June 5, 2013 
math
I v got some different questions,would you be so kind and check that for me?To find this you must have a set of results.You then need to find the total of the results and divide it by the number of results you have,e.g.Here are set of test marks
posted on June 5, 2013 
math
I need to write correct word to the definition..I m thinking abouth factors but I m not sure?
posted on June 5, 2013 
geometry
The number of lines of symmetry of any regular polygon is equal to the number of sides.
posted on May 17, 2013 
math
The number of lines of symmetry of any regular polygon is equal to the number of sides.
posted on May 17, 2013 
english
Thank you very much from Damian Donarski.
posted on May 11, 2013 
english
What are you thinking about changing the end of this story,and how?
posted on May 11, 2013 
english
for a I v done..Sea Shore Shark Shock for b)Blimey!Burning Book Blaze for c)Fearless Fireman Find Feline in Foliage.
posted on May 8, 2013 
english
Thank you very much from Damian Donarski
posted on May 5, 2013 
english
My name is Damian Donarski I'm ten years old. I live in Bournemouth now,but I was born In Poland. I live here with my family, which has three members my parents and me. I like playing football with my friends. My mum is 37 years old,she is tall and has
posted on May 5, 2013 
english
Could you check this for me please?
posted on May 5, 2013 
english
My name is Damian Donarski I'm ten years old. I live in Bournemouth now,but I was born In Poland. I live here with my parents, which has three members my parents and me. I like playing football with my friends. My mum is 37 years old,she is tall and has
posted on May 5, 2013 
english
I m from Poland and I m not sure how to write this propely.
posted on May 1, 2013 
math
I m thinking about multiply and divide.
posted on November 22, 2012 
history
Yes..
posted on October 15, 2011