10.2 PROBABILITY COIN TOSS
NAME_________________________HR___
ACTIVITY
DEFINE probability--_______________________________________________________________________________
PREDICT probabilities:
-a single coin landing on heads when flipped once is __________
-two coins landing on heads if you flip 2 coins at once? _________________
PREDICT the probability of inheritance of genes by tossing 2 coins to represent alleles from 2 parents
-having them both land on heads (HH) ___________
-having them both land on tails (TT) __________
-having 1 land on heads and 1 land on tails (HT) _____________
DETERMINE the probability of tossing HH / HT / TT
APPLY
-Take 2 pennies and toss them (GENTLY...so they both land on the desk in front of you) at the same time for 10 trials.
RECORD your results below.
**Make tally marks in the appropriate space to keep track of your results**
Both Heads (HH)
1 Head & 1 Tail (HT)
Total =
Total =
What was the ratio of your results for 10 tosses?
Both Tails (TT)___
Total =
______ : ______ ; ______
HH
HT
TT
10.2 PROBABILITY COIN TOSS
NAME_________________________HR___
ACTIVITY
DEFINE probability--_______________________________________________________________________________
PREDICT probabilities:
-a single coin landing on heads when flipped once is __________
-two coins landing on heads if you flip 2 coins at once? _________________
PREDICT the probability of inheritance of genes by tossing 2 coins to represent alleles from 2 parents
-having them both land on heads (HH) ___________
-having them both land on tails (TT) __________
-having 1 land on heads and 1 land on tails (HT) _____________
DETERMINE the probability of tossing HH / HT / TT
APPLY
-Take 2 pennies and toss them (GENTLY...so they both land on the desk in front of you) at the same time for 10 trials.
RECORD your results below.
**Make tally marks in the appropriate space to keep track of your results**
Both Heads (HH)
1 Head & 1 Tail (HT)
Total =
Total =
What was the ratio of your results for 10 tosses?
______ : ______ ; ______
HH
HT
TT
Both Tails (TT)___
Total =
REPEAT the procedure for 100, (yes, I said 100) tosses.
DO NOT CHEAT!!! Be sure you do ALL 100 tosses. Record your results in the table below.
Both Heads (HH)
1 Head & 1 Tail (HT)
Total =
Total =
Both Tails (TT)
Total =
RECORD the ratio of your results for 100 tosses?
______ : ______ ; ______
HH
HT
TT
COMPARE the results from 10/100 tosses: _____________________________________
ANAYLZE which was closest to the predicted ratio: _______________________________________________
REPEAT the procedure for 100, (yes, I said 100) tosses.
DO NOT CHEAT!!! Be sure you do ALL 100 tosses. Record your results in the table below.
Both Heads (HH)
1 Head & 1 Tail (HT)
Total =
Total =
Both Tails (TT)
Total =
RECORD the ratio of your results for 100 tosses?
______ : ______ ; ______
HH
HT
TT
COMPARE the results from 10/100 tosses: _____________________________________
ANAYLZE which was closest to the predicted ratio: _______________________________________________