Is a bullseye good in darts?

The outer green ring of the bullseye is worth 25 points, and an inner red circle worth 50 points. In a game of 501 or 301, each player gets to throw three darts per turn. The points of each dart are tallied and written down. The bullseye is worth much more than 20.

How many darts can she expect to throw in order to hit the bullseye the first time?

six tries
The first time you hit the bullseye is a “success” so you stop throwing the dart. It might take six tries until you hit the bullseye. You can think of the trials as failure, failure, failure, failure, failure, success, STOP.

What is the probability that a randomly chosen household has at least two cell phones?

0.20
E. Y has a geometric distribution with n = 52 observations and probability of success p = 0.5. The probability that a randomly-selected household has at least two cell phones is A. 0.20.

Which distribution has a characteristic in which there are one or more trials with all failures except the last one which is a success?

geometric experiment
There are three main characteristics of a geometric experiment. There are one or more Bernoulli trials with all failures except the last one, which is a success. In other words, you keep repeating what you are doing until the first success. Then you stop.

Is darts a muscle memory?

Muscle memory. Has your second dart automatically followed your first dart – even if you were aiming somewhere else? That’s called muscle memory and it can be your best friend or your worst enemy, depending on when it happens. The best way to control muscle memory is to make your first dart count.

When can you add the variances of two random variables?

Variances are added for both the sum and difference of two independent random variables because the variation in each variable contributes to the variation in each case. If the variables are not independent, then variability in one variable is related to variability in the other.

What is the probability that a randomly chosen household has at least three televisions?

0.176
(e) What is the probability that a randomly selected household has three televisions? From the table, P(3) = 0.176.