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Mariulka [41]
3 years ago
7

In a running competition, a bronze, silver and gold medal must be given to the top three girls and top three boys. If 10 boys an

d 8 girls are competing, how many different ways could the six medals possibly be given out?
Mathematics
2 answers:
Marysya12 [62]3 years ago
3 0

212345678901234567890

shepuryov [24]3 years ago
3 0

Answer:

120

Step-by-step explanation:

The number of ways the gold can be awarded is 6

The number of ways the silver can be awarded is 5

And the number of ways the bronze can be awarded is 4

6 * 5 * 4 = 120

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What is the reciprical and product of the fraction 3/7?​
pychu [463]

Answer:

7/3

Step-by-step explanation:

as it is a reciprocal you must flip the fraction so you can get your answer i hope this helped C:

6 0
3 years ago
I need help with the first two
mel-nik [20]
The work and answer provided are correct, the simpler way of doing it is

1)
1/6 page written in 1/12 of a minute
to write a full page, you would need to write 1/6, 6 times
so,
\frac{1}{6} \time 6 = 1
and
\frac{1}{12} \times 6 = \frac{6}{12} = \frac{1}{2}

so it takes 1/2 of a minute to write a full page, there are 60 seconds in a minute, 1/2 of 60 seconds is 30 seconds

same process works for question 2(use 3 instead of 6 though)
6 0
3 years ago
X
Simora [160]

Using it's formula, it is found that the mean of the discrete random variable is given by:

B. 30.47.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability</u>.

Hence, considering the table, the mean of the discrete distribution is:

E(X) = 23 x 0.16 + 25 x 0.09 + 26 x 0.18 + 31 x 0.12 + 34 x 0.24 + 38 x 0.21 = 30.47.

Hence option B is correct.

More can be learned about the mean of a discrete random variable at brainly.com/question/26660401

#SPJ1

4 0
1 year ago
Select the scenario below that demonstrates sampling bias. Select the correct answer below:
Vsevolod [243]

Answer:

C. Elizabeth wants to estimate the mean vacation days of coworkers at her company. She collects data by selecting a random group of coworkers within her department.

Step-by-step explanation:

Sampling Bias is case, in which some section of population have higher or lower chance of being selected in sample than others.

'Elizabeth wants to estimate the mean vacation days of coworkers at her company. She collects data by selecting a random group of coworkers within her department'. This case is of Convenience Sampling, where person selects sample only as per his/ her convenience.

Elizabeth has conveniently chosen sample workers from her department, so they have higher chance of being in sample, others have lesser chance.  Hence, this is Sampling Bias

7 0
3 years ago
Hellp guys I need good help
LUCKY_DIMON [66]

Answer:

1.B 2.D 3.C 4.A

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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