What is probability of selecting 2 families neither had, Ask an Expert

Statistics

There are 20 families living in Will Development. Of these families 10 prepared their own federal income tax for lastyear, 7 had them prepared by a local professional, 3 by H&R Block.

a. What is probability of selecting a family that prepared own taxes?

b. What is probability of selecting two families which both prepared own taxes?

c. What is probability of selecting 3 families all prepared own taxes?

d. What is probability of selecting 2 families neither had taxes prepared by H&R Block?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M9170037

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Jennifer currently has 500 in an account with an annual

Jennifer currently has $500 in an account with an annual rate of return of 4.3%. She wants to have $6000 for a trip to Alaska when she graduates in 4 years. How much will she have to save each month to afford her trip?

In the game of roulette a player can place a 7 bet on the

In the game of? roulette, a player can place a ?$7 bet on the number 18 and have a 1/38 probability of winning. If the metal ball lands on 18?, the player gets to keep the ?$7 paid to play the game and the player is awar ...

How does a histogram help us know the probability of

How does a histogram help us know the probability of getting a certain value for a variable? In other words how does the histogram relate to probability?

You work in the quality control office for a company that

You work in the quality control office for a company that manufactures fluorescent light bulbs. Your company offers a 4-year (1461 day) warranty on these bulbs. The average life span of your bulbs is 1600 days with a sta ...

You hold a stock with price 100 that can increase by 10 or

You hold a stock with price $100 that can increase by 10% or decrease by 10% m a year. The interest rate is 5% a) Suppose that you want to ensure that you'll get a minimum of $I00 in a year regardless of the evolution of ...

There are 20 total socks 10 white and 10 black this makes

There are 20 total socks, 10 white and 10 black. This makes 10 total matching pairs of 5 pair of white and 5 pair of black. If each time you pick a sock from the drawer a sock just like it magically replaces it, what is ...

1 a stock market analyst is able to 1. A stock market analyst is able to

1. A stock market analyst is able to identify mis-priced stocks by comparing the average price for the last 10 days to the average price for the last 60 days. If this is true, what do you know about the market's efficien ...

One of your customers has just made a purchase in the

One of your customers has just made a purchase in the amount of $19,200. You have agreed to payments of $335 per month and will charge a monthly interest rate of 1.11 percent. How many months will it take for the account ...

1 choose all probability distributions which are

1. Choose all probability distributions which are theoretically related to normal probability distribution 2. The 68-95-99.7 rule states that in a normal distribution 3. For a normal distribution the a mean of 179 and st ...

Parents who did not finish high school have sat math scores

Parents who did not finish high school have SAT math scores X with mean 451 and standard deviation 103. Scores Y of children of parents with graduate degrees have mean 567 and standard deviation 104. Perhaps we should st ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert