A box contains four slips of paper marked 7, 8, 9, and 10. Two slips are selecte
ID: 3055467 • Letter: A
Question
A box contains four slips of paper marked 7, 8, 9, and 10. Two slips are selected without replacement. List the possible values for each of the following random variables shown below (a) xum of the two numbers 15, 17, 19, 21, 23 16, 17, 19, 20, 22 15, 16, 17, 18, 19 O16, 18, 20, 22, 24 O 7, 8, 9, 10, 11 (b) y-difference between the first and second numbers 4,-3,-2,2,3,4 (c) z-number of slips selected that show an even number 2,4 O 0, 2 1,2 O 0,1 0, 1,2 (d) wnumber of slips selected that show a 10Explanation / Answer
Solution:
given slips are 7 , 8 , 9 , 10
( a )
x = sum of the two numbers
answer = 15,16,17,18,19
( b )
y = difference between first and second numbers
answer = -3,-2,-1,1,2,3
( c )
z= number of slips selected that show an even nymber
answer = 0,1,2
( d )
w = number of slips selected that show a 10
answer = 0,1
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