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alisha [4.7K]
3 years ago
15

An unbiased coin is tossed 20 times find the probability that the coin lands heads exactly 11 times

Mathematics
1 answer:
alexgriva [62]3 years ago
7 0
Both the heads and tails will have a probability of 0.5 with a fair coin. ... TO find probability that foe the 7th toss head appears exactly 4 times.
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Of five random selected students how many would you expect to vote for bill
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Answer:

none

Step-by-step explanation:

80% of 5 is 4 meaning that the chances of someone voting for Bill are not likely at all

6 0
2 years ago
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5. State the missing reasons in this proof.
hammer [34]

Answer:

a.) Vertical Angles

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Step-by-step explanation:

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What is the oppiste of 9
julia-pushkina [17]

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3 0
3 years ago
If \$1000 is deposited into an account that earns 3.25\% simple interest per year, how much money will be in the account after 7
Andrei [34K]
<h3>Answer: 1227.50 dollars</h3>

======================================================

Explanation:

The simple interest formula to use is

A = P*(1+r*t)

where,

A = account value after t years (original deposit + interest)

P = 1000 = amount deposited (principal)

r = 0.0325 = annual interest rate in decimal form

t = 7 = number of years

So,

A = P*(1+r*t)

A = 1000*(1+0.0325*7)

A = 1227.50

Side note: you've earned A-P = 1227.50-1000 = 277.50 dollars in total interest

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Korvikt [17]
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3 0
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