Homework Help: statistics

Posted by Kendra on Monday, November 7, 2011 at 4:23pm.

A group of six students all have different grades in statistics. The
median mark in the group is 68. If two of the six students are selected at random, what is the probability that both have marks greater than 68?

statistics - PsyDAG, Tuesday, November 8, 2011 at 10:59am
The probability of any score > median = 50% = .5

The probability of both/all scores occurring is found by multiplying the probabilities of the individual scores.

That should help you.

Answer this Question

Related Questions

Statistics - 1. The mean and standard deviation of the grades of a group of ...
statistics - If there are 24 students in a class, how many different-sized ...
statistics - If the means for our groups on calories consumed a day were Group A...
English - 1. A group of students help the sick. 2. A group of students helps the...
statistics - A company employs nine people and plans to select a group of six of...
statistics - Suppose your statistics instructor gave six examinations during the...
Stor 155 - In computing the median income of any group, some federal agencies ...
Statistics - Data Collection - If you were in a cafeteria full of students and ...
statistics - suppost we wanted to test the hypothesis that control a group of ...
Chemistry - Why would you expect lithium and sulfur to have different chemical ...

For Further Reading

First Name:
School Subject:
Answer: