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Archy [21]
3 years ago
9

Suppose you toss a coin 100 times and get 71 heads and 29 tails. Based on these​ results, what is the probability that the next

flip results in a head​?
Mathematics
1 answer:
murzikaleks [220]3 years ago
4 0

Answer:

0.71

Step-by-step explanation:

When a coin is tossed 100 times, it yields heads 71 times and tails 29 times.

So the probability of heads = Number of heads/Total number of tosses

= \[\frac{71}{100}\]

= \[0.71\]

Similarly, probability of tails = Number of tails/Total number of tosses

= \[\frac{29}{100}\]

= \[0.29\]

So the probability that the next flip results in a head = Probability of heads in the toss = 0.71

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If 10a+10b=35, what is the average (arithmetic mean) of a and b?
worty [1.4K]

Answer:

1.75

Step-by-step explanation:

If a  and b are two numbers, then their arithmetic mean is

\dfrac{a+b}{2}

Given:

10a+10b=35

Divide this equation by 10:

a+b=3.5

Now, divide it by 2:

\dfrac{a+b}{2}=\dfrac{3.5}{2}\\ \\\dfrac{a+b}{2}=1.75

6 0
4 years ago
Someone please help explain how to find x
dimaraw [331]

Answer:

x=27

Step-by-step explanation:

180-2x-40+180-3x+180-x-50+180-4x = 360

360-2x-40-3x+360-x-50-4x= 360

360-10x-90= 0

10x= 270

x= 27

5 0
4 years ago
Write as a decimal. If a repeating decimal, round to the nearest hundredth.
Mamont248 [21]

Given:

\frac{475}{80}

Let's evaluate and find the quotient.

We have:

\frac{475}{80}=5.9375

SInce it is not a repeating decimal, we are asked to leave to answer as it is.

A repeating decimal is a decimal with digits or group of digits that repeats endlessly.

The decimal 5.937

ANSWER:

5.9375

6 0
1 year ago
Find the simple interest earned in a savings account that pays 5% interest if $500 is deposited for 4 years. A. $100, B. $1000,
g100num [7]
To calculate simple interest, you first need to multiply the original amount by the percentage of the money which is going to be added.

In this situation, 500 x 0.05 is the interest which will be added each year.
Therefore, $25 will be added each year. Since it is over 4 years, it is (25*4).
So the account will have earned $100 of simple interest.

Although the account will contain $600, it will have EARNED $100 of interest since it started with $500 already.

Answer - A $100 of simple interest will be earned.
3 0
4 years ago
Help me out plz................................
12345 [234]
I think it is A but make sure with someone else
7 0
3 years ago
Read 2 more answers
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