Card numbered from 7 to 49 are put in a box and mixed thoroughly. A card is drawn from the box what is the probability that the number written on it is
(1). A prime number
(2). A multiple of 7
Answers
Answered by
65
Total number of events is 42
Prime no from 7 to 49 are 7, 11, 13, 17, 19, 23, 29, 31, 37, 41 ,43, 47,::, are 12 no .
So,
1.
P(e) = 12/42 = 6/21 = 2/7
And multiple of 7 are 7, 14, 21, 28, 35, 42, 49 are 7 no.
2.
P(e) = 7/42 =1/6
Prime no from 7 to 49 are 7, 11, 13, 17, 19, 23, 29, 31, 37, 41 ,43, 47,::, are 12 no .
So,
1.
P(e) = 12/42 = 6/21 = 2/7
And multiple of 7 are 7, 14, 21, 28, 35, 42, 49 are 7 no.
2.
P(e) = 7/42 =1/6
Answered by
26
Answer:
Step-by-step explanation:
Card numbered from 7 to 49 are put in a box and mixed thoroughly. A card is drawn from the box what is the probability that the number written on it is
(1). A prime number
(2). A multiple of 7
Answer:
Total number of events is 42
Prime no from 7 to 49 are 7, 11, 13, 17, 19, 23, 29, 31, 37, 41 ,43, 47,::, are 12 no .
So,
1.
P(e) = 12/42 = 6/21 = 2/7
And multiple of 7 are 7, 14, 21, 28, 35, 42, 49 are 7 no.
2.
P(e) = 7/42 =1/6
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