Question

A fish tank in a pet store has 15 fish in it. 11 are orange and 4 are white. How do I determine the probability that if we select 3 fish from the tank, at least 2 will be white?

Step 1

**The Hypergeometric distribution:**

A random variable *X* is said to follow hypergeometric distribution if its probability mass function is as follows,

Step 2

**Computing the probability of getting 3 fish from the tank, at least 2 will be white:**

Here 3 fishes are selected from a tank containing 15 fishes.

This follows Hypergeometric distribution with *N*=15, *K* = 4, *k* = 2,..., n and *n* = 3.

Here, the total number of fishes is denoted by *N*, the total number of white fishes is denoted by *K* and number of observed successes by *k.*

Then the ...

Tagged in

Q: Why should researchers be very cautious about comparison or correlatios that involve different vaiab...

A: In general correlation does not imply causation. If there is strong correlation between two variable...

Q: Doctor Frederick believes the population mean weight of adult male patients in his practice is exact...

A: The aim is to find the accurate statement from the following options to evaluate the claim that the ...

Q: Question 1 The company Phiten makes necklaces that Major League Baseball players commonly wear durin...

A: a) an exogenous variable can be defined as a variable whose value is independent of other variables ...

Q: In a study of the accuracy of fast food drive-through orders, one restaurant had 32 orders that were...

A: The provided details:

Q: Describe the main difference between a dependent and an independent t test. (Note: I am not asking y...

A: Dependent t-test: The dependent t-test, also known as the “paired t-test”, is a statistical procedur...

Q: An experiment conducted by a scientist uses 2 tablets of Aspirin per day to see the blood thinning i...

A: Controlled variables:In an experiment, a controlled variable is a variable or characteristic of the ...

Q: What do you need to look for in bivariate screening (for each categorical and quantative variables)?

A: Solution:Bivariate analysis helps to determine the relationship of two variables. The possible combi...

Q: Find the standard deviation for the group of data items. 5,5,5,5,7,9 (Simplify your answer. Rou...

A: Solution:Computation of standard deviation:Standard deviation for the group of data items is calcula...

Q: An economist is studying the job market in Denver area neighborhoods. Let x represent the total numb...

A: Scatter PlotIt is a Graph between two variables. It is plotted to check the relationship between the...

Sorry about that. What wasn’t helpful?