Three brothers and their wives decide to have childrenuntil each family has two female children. What is the pmfof X 5 the total number of male children born to thebrothers? What is E(X), and how does it compare to theexpected number of male children born to each brother?

Q: If a student's weighted grade point average is 75.2 and ∑tiXi = 1504 in the spring semester, how…

A: Given,If a student's weighted grade point average is 75.2and ∑tiXi = 1504

Q: Spaceship B: Miles covered 300,000 500,000 Time taken (in hours) 12 Will it be able to reach Mars…

A: Let's find.

Q: Find the three-digit number that increases by 30% when each of its digits are increases by 1.

A:

Q: 3 + 2 = 165 2 + | = 123 %3D 4 + 2 = 286 S + 3 = 2158 6 + 1 = ?

A: Given that 3+2=165 2+1=123 4+2=286 5+3=2158 6+1=?

Q: for ag(1-1) belongs (-7,x], (0,2%), (7,37] and (20x2, 22x]. find the Vale of lag (1-i).

A: log(z)=log|z|+iarg(z) If z=x+iy then z=x2+y2 and arg(z)=arctanyx Let z=1-i

Q: the veterinary pharmaceutical company has developed a new drug that is touted to enhance a dog's…

A: The variables are defined as: X=% of drug  in the dog's blood stream and,  y=number of hours the dog…

Q: f you read 20 minutes per day every day and end up reading 12 books in a year, each of which is of…

A: Number of books reading in a year = 12 Number of pages in a book = 200 Number of minutes read every…

Q: -2 4 %3D Зх-1 х+2 8.

A:

Q: How many people can be fed with 10 1/2 pizzas if each person is to get 3/8 of a pizza?

A:

Q: In 2019 there were 446,479 births in California and California had a population of 39,512,223. (a)…

A: a) 1 year = 365 days.

Q: Tacoma's population in 2000 was about 200 thousand, and has been growing by 8% each year. If this…

A: Given : Population at the beginning of 2000 was 200,000. There is a compounding effect in the growth…

Q: The number of unemployed people in the month of July was 23,876. In August that figure decreased by…

A: Given the number of unemployed people in the month of July was 23,876. And in August that figure…

Q: The population density of a village in South Africa is 2,000 people/100 mi2.  Which of the following…

A:

Q: The number of infected people in a population grows by 8% per day and those who become infected…

A: Solution-: Given: Infected people grow per day r=0.08 (8%) Initially infected people=a=8 , x=45 We…

Q: Rhonda took a ribbon which was originally 81 cm in length. She cut the ribbon in thirds and measured…

A: Here, n is the number of cuts. Then, by the above information, length of ribbon piece, L(n)=813n We…

Q: Cambridge Slim are 38 sausages in the first 23 minutes of a high stakes eating conest. Assuming that…

A: The ratio of 2 numbers is one number divided by the other number. For the ratio to be consistent,…

Q: 3/8 of the plants needed water.  63 plants need water. How many plants are there total? Round two…

A: Solution:

Q: A rumor started in a town with a population of 10000 people. The rumor spreads in proportion to the…

A:

Q: why does it result in the same amount?

A: We see that the initial price of the dress was $80. Then it was mark upto 100%. So, hike in price =…

Q: a population of bacteria originates with 2500 bacteria. After a harmful substance is introduced into…

A: Initial population of bacteria= 2500 The rate of decline of the bacteria population= 10% Also,…

Q: 33x33%3D35× 3X

A: 33 x 33 =35 x 3x

Q: Mr Anderson is 36 years old his son is 6 years old after how many years mr Anderson age will become…

A: How many years mr Anderson age will become exactly 2.5 times of his sons age?

Q: Your grade is currently 84.76%. The final exam is 18% of your grade. If I get a 0 on this exam…

A: Here we will find the grade drop down to,

Q: Josh live 1 4/5 miles from the park. So far he walked 2/3 of the distance from his house to the…

A: Here we have to find out the how many distance josh walk

Q: hours, 4 inches of snow has fallen. If it continues to snow at the same rate,how many inches of snow

A: Snow is falling steadily in Syracuse, New York.  After 2 hours, 4 inches of snow has fallen. It…

Q: ms cazier bought a bag of food for her car , every day he eats 1/2 cup of food how much food will be…

A: Simply multiply the one day food amount with total number of days.

Q: (c) How many times more intense is the sound of a motorcycle than a vacuum cleaner? The sound of a…

A: Given that   L =10 log II0                  a)…

Q: If you have 3/12 of an orange how many fourths do you have?

A:

Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.