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Two coins are going to be tossed 780 times Predict the number of times 2 heads will be tossed?
Wiki User
∙ 16y ago
Half the time they will be the same, half the time they will be different. Half of the time that they're the same they will be heads, half the time they are the same they will be tails. It's your homework, YOU figure it out. The way I figure it. There are four options:
1) heads / heads
2) heads / tails
3) tails / heads
4) tails / tails By process of chance, one out of four times both coins will be heads/heads. Therefore 780/4 = 195 times.
Wiki User
∙ 16y ago
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The smallest coin available is a penny, worth one cent. Simply shift the decimal two places to the right (because you're going from dollars and cents to strictly cents) to find that you would need 2930 pennies to make $29.30 using the largest number of coins possible. Using any other coins would only decrease the number of coins in the combination.
