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the pulse rate adult men approach a normal distribution, ith a mean 80bpm(beats per minute) and a standard deviation of 5 bpm. what percent of adults have a pulse rate of more than 92 bpm?
x = 82 , M = 75 , Ó = 15
Consider a population consisting of 1,2,3,4 and 5. Supposed samples of size 3 are drawn from this population. describe the sampling distribution of the sample means.
- What is the mean and variance of the sampling distribution of the sample means?
1. Three coins are tossed and the random variable Y is the number of tail that appear.
Sample Space = ___
Y= _____
2 Let Z represent the number of girls (daughters) in a family of three children. Use B to represent boys and G
to represent girls.
Sample Space = ______
Z=
Construct all random samples consisting three observations from the given data. Arrange the observations in ascending order without replacement and repetition.
86 89 92 95 98
Find the mean of the probability distribution of a random variable X, if P(X) = 20
X 1
for X =
1,2,3,4, and 5.
Perform what is being asked. Follow the steps indicated in the first column of the table to complete
the activity. In the second column, write your solution on the spaces provided. Situation: A population
of PWD learners in 5 schools in a certain municipality of Quezon Province are (x) 3, 7, 6, 13, and
17. Suppose that two schools were selected as samples, determine the mean and variance of the
sampling distribution of sample mean.
First Step:
Second Step:
a.
Third Step:
Fourth Step:
Fifth Step:
Sixth Step:
Seventh Step:
2. Coren was able to sell several pairs of Marikina shoes that have sizes of 9, 7, 11, 3, and
8. Consider samples of size 3 that can be drawn from this population
a. List down all the possible samples and corresponding sample mean
Sample
Sample Means
b. Construct the sampling distribution of the sample means.
Sample Means
Frequency
Probability P(x)
c. Draw a histogram of the sampling distribution of the sample mean.
A population consists of the values (6, 9, 5, 3). Consider samples of size 2 that can be
drawn from this population.
a. List down all the possible samples and corresponding sample mean
Sample
Sample Means
b. Construct the sampling distribution of the sample means.
1. A teacher’s record has the following (a) Scores of student in a 50-item test (b) Gender (c)Height of the students Let: X = Scores of students in a 50-item test Y = Gender Z = Height of the students Classify each variable above as discrete or continuous
