WorksheetsStatistics and Probability Quiz
Total questions: 10
Worksheet time: 8mins
Which of the following is a discrete random variable?
average amount of water consumed
amount of paint used in repainting a building
average weight of male athletes
number of vaccinated students in a class
Which formula gives the probability distribution shown by the table?
P(X)=X1
P(X)=6X
P(X)=X6
P(X)=61
The following are properties of normal distribution EXCEPT
The distribution curve is bell-shaped.
The curve is symmetrical about its center.
The mean, the median, and the mode are equal and coincide at the center.
The area under normal curve is greater than 1.
What do you call a normal distribution with mean μ = 0 and a standard deviation σ = 1?
Perfectly Normal Distribution
Standard Normal Distribution
Absolute Normal Distribution
Statistical Normal Distribution
Your teacher made used of draw lots to select a class representative . What type of sampling method was utilized ?
Simple Random Sampling
Systematic Random Sampling
Stratified Random Sampling
Cluster or Area Sampling
Consider values of 1,2,3,4,5. How many number of samples of size 3 can be derived if sampling is with replacement?
10
15
125
250
A point estimate of a population consists of how many numbers?
1
2
10
Infinite
In testing a hypothesis, the hypothesis that is assumed to be true is the
alternative hypothesis
null hypothesis
null or the alternative hypothesis
neither the null nor the alternative hypothesis
The purpose of simple linear regression analysis is to
Predict one variable from another variable
Replace points on a scatter diagram by a straight line
Measure the degree by which two variables are linearly associated
Obtain the expected value of the dependent variable
When regression line passes through the origin, then
Regression coefficient is zero
Intercept is zero
Correlation is zero
Association is zero
