Search & Filtering
1. A population consists of the four numbers (2,3,5). Consider all possible samples of size 2 that can be drawn with
replacement from this population. Find the following:
The mean of the population
b. The standard deviation of the population
The mean of the sampling distribution of means
d. The standard deviation of the sampling distribution of means.
Illustrate the probability histogram of the sampling distribution of the means
Complete the table below.
An experiment involves studying the composition of genders of a set of triplets. What is the probability that there are 2 boys and a girl in the set?
Which of the following statements is not an example of a discrete random variable?
Select one:
The age of male respondents to a questionnaire about gender differences
The number of sales a salesperson makes per year
The number of school-age children in a particular family
The number of female respondents to a questionnaire about gender differences
Consider the composition of a 3-child family in which the children were born at different times but a girl is as likely as a boy at each birth. What is the probability that the oldest child and the youngest child are of the same gender?
A bag contains 4 red balls, 3 blue balls and 5 yellow balls. If a ball is selected at random, find the probability that the ball will be blue or yellow.
There are basically two types of random variables; discrete and ________ random variables.
An urn contains10 balls of equal size but distinguishable only by colour. 5 of the balls are blue, 3 are red and 2 are green. If a ball is selected at random, what is the probability that it will be a white ball?
If the probability that it may rain tomorrow is 2/5, what is the probability that it may not rain?
When a coin is tossed 5 times, how many possible outcomes are expected to be listed in the sample space?
How many different permutations can be made from the letters in the word “CHICHARITO”?
