An investigation directed by the Pew Research Center showed that 75% of 18-to 34-year-olds living with their folks say they add to family expenses (the divider road Journal,

October 22, 2012). Assume that an arbitrary example of fifteen 18-to 34-year-olds living with

their folks is chosen and inquired as to whether they add to family expenses.

a. Is the choice of the fifteen 18-to 34-year-olds living with their folks a binomial

try? Clarify.

b. In the event that the example shows that none of the fifteen 18-to 34-year-olds living with their folks

add to family expenses, would you question the aftereffects of the Pew Research

Study? Clarify.

c. what is the likelihood that at any rate 10 of the fifteen 18-to 34-year-olds living with their

guardians add to family expenses?

More than 500 million tweets are sent each day (Digital Marketing Ramblings site,

December 15, 2014). Accept that the quantity of tweets each hour follows a Poisson appropriation and that Bob gets on normal 7 tweets during his lunch break.

a. What is the likelihood that Bob gets no tweets during his lunch break?

b. What is the likelihood that Bob gets at any rate 4 tweets during his lunch break?

c. What is the generally anticipated number of tweets Bob gets during the initial 30 minutes of his

lunch hour?

d. What is the likelihood that Bob gets no tweets during the initial 30 minutes of his

lunch hour?

Carrier travelers show up arbitrarily and autonomously at the traveler screening office

at a significant worldwide air terminal. The mean appearance rate is 10 travelers each moment.

a. Register the likelihood of no appearances in a one-minute time span.

b. Figure the likelihood that three or less travelers show up in a one-minute time frame.

c. Process the likelihood of no appearances in a 15-second time frame.

d. Figure the likelihood of in any event one appearance in a 15-second time frame.

Auto fix costs keep on ascending with the normal expense now at $367 per fix (U.S.

News and World Report site, January 5, 2015). Expect that the expense for a car

fix is ordinarily circulated with a standard deviation of $88. Answer the accompanying

inquiries regarding the expense of car fixes.

a. W cap is the likelihood that the expense will be more than $450?

b. W cap is the likelihood that the expense will be under $250?

c. W cap is the likelihood that the expense will be somewhere in the range of $250 and $450?

d. On the off chance that the expense for your vehicle fix is in the lower 5% of car fix charges, what is

your cost?Automobile fix costs keep on ascending with the normal expense now at $367 per fix (U.S.

News and World Report site, January 5, 2015). Expect that the expense for a vehicle

fix is ordinarily disseminated with a standard deviation of $88. Answer the accompanying

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inquiries regarding the expense of vehicle fixes.

a. W cap is the likelihood that the expense will be more than $450?

b. W cap is the likelihood that the expense will be under $250?

c. W cap is the likelihood that the expense will be somewhere in the range of $250 and $450?

d. On the off chance that the expense for your vehicle fix is in the lower 5% of auto fix charges, what is

your expense?