Exam 2: Statistics and Data Analysis Basics

You are conducting a study to see whether a new experimental medication will cause bald men to grow hair. You divide your patients into 2 groups. To one group you give the medication. To the other group, you give a placebo. In this study, the correct terms for the taking of the medication and the growth of hair are the following.

______refer to population characteristics while _____describe sample characteristics

The sum of deviations taken from arithmetic mean is

Which of the curves is more peaked than the normal curve?

The concept of a variable implies that the values of every characteristic of an item are different

What is the median in the following numbers: 19, 21, 18, 17, 18, 22, 46

What is the median of the following set of numbers? {12,8,13,4,7,6,3,3,15}

Which of the following statements is not correct

Which of the following is not true in respect of mean deviation

Celsius and Fahrenheit temperature scales are examples of interval levels of measurement

Statistics is the study of _______ measures of the values associated with variables

Which of the following correlation coefficients shows the highest degree of association

What is the purpose of a summary table?

The width of a class interval in a frequency distribution (or bar chart) will be approximately equal to the range of the data divided by the ______________ .

What will be the range of "r" when we find that the dependent variable increases as the independent variable increases

Contestants of a competition have reached the semi-finals. After the semi-finals, their score are of below. Those whose score is lower than the median will not be able to enter the finals, so who managed to enter the finals. Here is the list of contestants: Anoop - 70 Points, Babu - 50 Points, Cindu - 65 Points, Das - 90 Points, Emy - 55 Points, Fasna - 85 Points, Gopi - 100 Points

Which of the following definitions is the definition of the MEDIAN?

A teacher had 5 students who took a test. Their test scores are as follows: 62, 86, 72, 66, 72. What is the mode of the test

Which of the following definitions is the definition of the MEAN

A graphical representation of a frequency distribution is called a__________________