Measures of Central Tendency - Online Test
Q1. combined mean is
Answer : Option A
Explaination / Solution:
Combined mean can be computed if we know the mean and number of items in each groups of the data.
Q2. Shoes manufacturing company only manufactures shoes for adults. Company wants to know the most popular size. Which type of central tendency will be the most appropriate?
Answer : Option B
Explaination / Solution:
Mode is the value that is, most populer or most likely to be sampled.
Q3. Which diagram is used for finding the value of mode graphically?
Answer : Option B
Explaination / Solution:
The hight of the rectangles in the histogram is marked by the frequencies of the class interval as shown in the graph .Identify the highest rectangle. This corresponds to the modal class of the series.
Q4. The most frequently occurring number in a set of values is called the ____.
Answer : Option D
Explaination / Solution:
The mode of a set of data values that appears most often or The most frequently occurring.
Q5. The _______ is often the preferred measure of central tendency if the data are severely skewed.
Answer : Option E
Explaination / Solution:
The median is usually preferred to other measures of central tendency when your data set is skewed.
Q6. Which measure of central tendency takes into account the magnitude of scores?
Answer : Option D
Explaination / Solution:
Measures of central tendency describe the distribution of scores around a midpoint. The mean is the most commonly used measure of central tendency
Q7. When the distribution is of open end classes which average may appropriate
Answer : Option C
Explaination / Solution:
An open ended distribution means that one or more of your classes are open-ended. In other words, it doesn’t have a boundary. In this frequency distribution table only find median from this data.
Q8. --- is the half distance between the third and first quartiles
Answer : Option A
Explaination / Solution:
Quartile Deviation (QD) means the semi variation between the upper quartiles (Q3) and lower quartiles (Q1) in a distribution. The formula is Q3 - Q1/2.
Q9. A distribution is skewed if Mean , Median , Mode are
Answer : Option C
Explaination / Solution:
This is common for a distribution that is skewed to the similarly, a distribution that is skewed to the typically has a mean smaller than its median and median is smaller than Mode.
Q10. X > M > Z shows relationship
Answer : Option B
Explaination / Solution:
A distribution is positively skewed. When Mean> Median>Mode shows relationship.
