MCQ Bank
The characteristic such as, satisfaction is an example of __________ variable.
- A) discrete
- B) quantitative
- C) qualitative
- D) continuous
Which of the following statements accurately describes the median?
- A) It is the difference between the highest and lowest values in the dataset.
- B) It is the middle value when the data points are arranged in ascending or descending order.
- C) It is the arithmetic average of all values in the dataset.
- D) It is the value that appears most frequently in the dataset.
If 10% of 100 apples, 12% of 100 oranges, and 8% of 100 bananas are rotten, what percentage of fruits is rotten overall?
- A) 5
- B) 20
- C) 15
- D) 10
${\text{If}}\,\,\sum {f\,x = 1135.5\,\,{\text{and}}\,\,\sum {f\, = \,30\,\,{\text{then}}\,\,{\text{the}}\,\,{\text{weighted}}\,\,{\text{mean}}\,\,\_\_\_\_\_\_\_\_\_.} \,\,\,}$
- A) 37.85
- B) 35.89
- C) 38.60
- D) 39.50
The assumption that all the values falling in a class are equal to the mid-point of the class interval is known as __________.
- A) relative error
- B) grouping error
- C) absolute error
- D) true error
If a multiple bar chart displays the monthly revenue of two companies over a year, how are the bars typically grouped?
- A) By year, with each company's revenue adjacent to each other
- B) By company, with each month's revenue adjacent to each other
- C) By month, with each company's revenue adjacent to each other
- D) By quarter, with each company's revenue adjacent to each other
If the number of data elements is 10 and mean of the data is 50 then the sum of the data elements will be.....
- A) 140
- B) 145
- C) 150
- D) 130
A component bar chart is used to represent data in which the total size is _____________ into different or components.
- A) added
- B) divided
- C) subtracted
- D) multiplied
If 5% of 600 students are absent on Monday, 12% on Tuesday, and 15% on Wednesday, how many students are absent on Tuesday?
- A) 72
- B) 90
- C) 30
- D) 100
In a dataset of exam scores, if the median is 75, what does this imply?
- A) 45% of the students scored higher than 75.
- B) 75% of the students scored higher than 75.
- C) 50% of the students scored higher than 75.
- D) 65% of the students scored higher than 75.
The median and mode of 2, 2, 5, 5, 5, 5, 6, 7, 9 is __________.
- A) 5
- B) 6
- C) 2
- D) 5.5
What is an example of a measurement that can be accurately analysed using a ratio scale?
- A) Evaluating customer satisfaction as satisfied or dissatisfied
- B) Rating movies on a scale of 1 to 5 stars
- C) Categorizing fruits into types
- D) Measuring the length of a race track
The number of times a data value occurs is called _____________.
- A) median
- B) frequency
- C) mean
- D) mode
If the minimum and maximum values for the given data is same then the mean would be ___________ value.
- A) average
- B) zero
- C) minimum
- D) maximum
What scientific discipline focuses on drawing conclusions about various phenomena based on real data collected on a sample basis?
- A) None of these
- B) Probability theory
- C) Mathematics
- D) Statistics
The __________ of each class is obtained by adding the sum of the two limits of the class and dividing by 2.
- A) median
- B) mid-point
- C) class boundary
- D) mode
In statistics, the difference between observed and true value is called......
- A) error of measurement
- B) random error
- C) mistake
- D) systematic error
${\text{In}}\,{\text{the}}\,{\text{given}}\,{\text{formula}}\,{\text{ }}\hat X = l + \frac{{{f_m} - {f_1}}}{{({f_m} - {f_1}) + ({f_m} - {f_2})}} \times h,{\text{ }}{f_2} = \_\_\_\_\_\_\_\_\_\_.$
- A) frequency of the class following the modal class
- B) frequency of the class preceding the modal class
- C) cumulative frequency
- D) frequency of the modal class
A pie chart consists of a ………
- A) rectangle
- B) square
- C) triangle
- D) circle
The measure of central tendency which takes into account every value in the series is __________.
- A) mode
- B) median
- C) range
- D) arithmetic mean