ACET (Actuarial Common Entrance Test) Statistics: Questions 104  108 of 201
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Question number: 104
» Probabilities » Basic Rules of Probabilities
Question
From a pack of 52 cards, two cards are drawn random successively with replacements. Find P (X = 1) if X represents the number of aces.
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 105
Question
The number of Kids in 10 families of a colony are plotted in the following dot diagram
Choices
Choice (4)  Response  

a.  The mean number of kids is smaller than the median and the mode  
b.  The mean number of kids is greater than the median but lower than the mode  
c.  The mean number of kids is smaller than the median but larger than the mode  
d.  The mode of the kids is smaller than the median and the mean 
Question number: 106
» Measures of Spread » Interquartile Range
Question
Find out interquartile range from the following data:
Marks Obtained  0  10  10  20  20  30  30  40  40  50  50  60  60  70  70  80 
No. of Students  3  5  5  8  12  10  8  9 
Choices
Choice (4)  Response  

a.  42.25  
b.  30  
c.  32.5  
d.  40 
Question number: 107
» Probabilities » Conditional Probabilities
Question
If then which of the following is correct?
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 108
» Continuous Random Variables » Variance
Question
A continuous random variable has the following pdf
Find the median of X and Var (X).
Choices
Choice (4)  Response  

a.  , 0.34  
b.  0.225,0.34  
c.  0.34,  
d.  0.34, 