BCOM Maths-1 MCQ's




Question 151 :
A limitation of mode is _____.

  1. It is easy to calculate
  2. It is not based on all observations
  3. It can be obtained graphically
  4. None of the given option
  

Question 152 :
Which of the following is the most suitable average for the average size of readymade garments?

  1. Arithmetic mean
  2. Median
  3. Mode
  4. Geometric Mean
  

Question 153 :
With the help of histogram, one can determine :

  1. Median
  2. Mode
  3. Mean
  4. All of the above
  

Question 154 :
Mode can be located graphically using a _____.

  1. Pie Diagram
  2. Histogram
  3. Ogive
  4. All of these
  

Question 155 :
_____ is the most frequently occurring value in a data set.

  1. Mean
  2. Median
  3. Mode
  4. Weighted Arithmetic Mean
  

Question 156 :
A limitation of mode is(i) It is easy to calculate, (ii) It is not based on all observations, (iii) It can be obtained graphically, (iv) It is not unique.

  1. (i) and (ii)
  2. It is not based on all observations
  3. None of these
  4. All of the above
  

Question 157 :
_____ are the typical values within the range of the data, that lies within the smallest and the largest observation.

  1. Dispersion
  2. Averages
  3. Frequency
  4. No. of Observations
  

Question 158 :
_____ cannot be calculated in case of distribution with open end classes.

  1. Median
  2. Mode
  3. Arithmetic Mean
  4. Quartiles
  

Question 159 :
The mean of 10 items was 50. The value of largest item was 65. It was later found that is actually 60. Therefore the correct mean is _____.

  1. 50.3
  2. 55.6
  3. 65
  4. 49.5
  

Question 160 :
14 is the mean of 7 observations. 20 is the mean of 8 observations. The mean of a combined set is given by _____.

  1. 17
  2. 17.2
  3. 15
  4. 34
  

Question 161 :
The sum of N observations is 630 and their mean is 42, then the value of N is _____.

  1. 25
  2. 20
  3. 15
  4. 15
  

Question 162 :
The median of the given series of observations 46, 33, 34, 38, 40, 52, 56, 58 is

  1. 40
  2. 52
  3. 43
  4. 56
  

Question 163 :
The variant values which divides the series of observation into four equal parts are called _____.

  1. Quartiles
  2. Median
  3. Mode
  4. Deciles
  

Question 164 :
The average marks of boys are 65 and that of girls are 70. The average marks of boys and girls combines is 67. The ratio of number of boys to number of girls is _____.

  1. 0.04375
  2. 0.085416667
  3. 0.125694444
  4. 0.126388889
  

Question 165 :
For a grouped frequency distribution _____ is equal to the value corresponding to cumulative frequency N/2

  1. 1st Quartile
  2. Median
  3. 3rd Quartile
  4. None
  

Question 166 :
If A and B are two events which have no points in common, the events are

  1. independent
  2. mutually exclusive
  3. dependent
  4. complementary to each other
  

Question 167 :
If A and B are two events, the probability of occurrence of either A or B is given by

  1. P (A U B)
  2. P (A) + P (B)
  3. P (A ∩ B)
  4. P (A) P(B)
  

Question 168 :
If two A and B are such that A Ì B and B Ì A, the relation between P (A) and P (B) is

  1. P (A) ≤ P (B)
  2. P (A) ≥ P (B)
  3. P (A) = P (B)
  4. none of the above
  

Question 169 :
The outcome of throwing a die is

  1. Simple event
  2. Mutually exclusive event
  3. Complementary
  4. Compound even
  

Question 170 :
If A and B are two events, the probability of simultaneous occurrence of A and B is given by

  1. P (AB)
  2. P (A) + P (B)
  3. P (AB)
  4. P (A) P (B)
  

Question 171 :
The probability of all possible outcomes of a random experiment is always equal to

  1. infinity
  2. one
  3. zero
  4. none of the above
  

Question 172 :
The probability of the intersection of two mutually exclusive events is always

  1. infinity events
  2. one
  3. zero
  4. none of the above
  

Question 173 :
Two events are said to be independent if

  1. there is no common point in between them.
  2. one does not affect the occurrence of the other.
  3. each outcome has equal chance of occurrence.
  4. none of the above
  

Question 174 :
If E is an event, the conditional probability of E given E is equal to

  1. one
  2. zero
  3. infinite
  4. none of the above
  

Question 175 :
The outcomes of tossing a coin two times are the variable of the type.

  1. neither random variable
  2. continuous random variable
  3. neither (a) nor (b)
  4. (a) as well as (b)
  

Question 176 :
The weight of a person in a country is a random variable of the type.

  1. discrete random variable
  2. continuous random variable
  3. neither (a) nor (b)
  4. (a) as well as (b)
  

Question 177 :
If a random variable X has the following probability distribution X –1 –2 1 2 P (x) 1/3 1/6 1/3 1/6 Then the expected value of X is

  1. 44622
  2. 44567
  3. 44563
  4. none of the above
  

Question 178 :
If X is random variable with its mean ** then the expression E (X – **)2 represent

  1. expectation of X
  2. variance of X
  3. both (a) and (b)
  4. none of (a) and (b)
  

Question 179 :
X is a random variable having its p.d.f. f (x), the E (x) is called

  1. arithmetic mean
  2. geometric mean
  3. first quartile
  4. none of the above
  

Question 180 :
The six of the most popular criteria available are maximax, minimax, maximin, minimin minimax regret, laplace criteria one of the above criterian can be used when probabilities of various states of nature (or events) are _____.

  1. Known
  2. Unknown
  3. (a) and (b)
  4. None
  
Pages