Concept explainers
Single penny tossed 20 times and counting heads and tails:
Probability (prediction): _______/20 heads ________/20 tails
(Note: Traditionally, probabilities are converted to the lowest fractional representation.)
Actual results: ______heads ______tails
Class totals: ______heads ______tails
To analyze:
Single penny tossed 20 times and counting the heads and tails.
Introduction:
Probability__10__/20 heads__ 10_/20 tails
Actual rates _1___heads
Class result 19__tails.
Probability are written as number between zero and one.
Probability of one means that the event is certain.
Explanation of Solution
Tossing a coin 20 times can give 2 outcomes.
So, the probability of getting at least one head
.There will be exactly one case in which tails. no heads show up
Therefore, the probability of getting one head at least one heads is
The probability of single penny tossed of any one of them is
Probability 10 /20 heads 10/20tails so actual rates 1heads and class result 19 tails.
One head only out of 20 tossed. So class result will be 19 tails.
Single penny tossed 20 times and counting heads1and tails 19. So the probability of fraction is
10 /20 heads and 10 /20 tails are converted to the lowest fractional representation.
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