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WARRIOR [948]
3 years ago
13

Vincent flipped three coins during a probability experiment. The outcomes of the first 40 trials are shown in the table

Mathematics
1 answer:
mafiozo [28]3 years ago
6 0

Answer:

Step-by-step explanation:

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20. The H.M. between 2 and 8 is<br>(1 marks )​
e-lub [12.9K]

Answer as an improper fraction = 16/5

Answer as a mixed number = 3 & 1/5

Answer in decimal form = 3.2

All of those values represent the same thing, but written in a different way.

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

Explanation:

I'm assuming HM stands for Harmonic Mean in this case.

If so, then we apply the reciprocal operation to each value to get 1/2 and 1/8 (from 2 and 8 respectively).

Add up those fractions:

1/2 + 1/8 = 4/8 + 1/8 = 5/8

Now we'll divide n = 2 over that result. The n = 2 refers to the number of items in the original set.

n divide over (5/8) = 2*(8/5) = 16/5 which is the answer as an improper fraction

-----------

To convert to a mixed number, we can do the following:

16/5 = (15+1)/5

16/5 = 15/5 + 1/5

16/5 = 3 + 1/5

16/5 = 3 & 1/5

Or if you need the answer in decimal form, then using a calculator would get you 16/5 = 3.2

6 0
2 years ago
Solve 3[-x+(2x+1)]=x-1
12345 [234]

Answer:

x = 1

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask ÷)

3 0
3 years ago
Mr. Ramirez has enough money to fence one of his rose gardens, how many feet of fencing will he need if both gardens have the sa
Irina-Kira [14]
He will need double the amount of what he would need for the one garden.
3 0
3 years ago
Which is an example of an incremental approach to solving a problem? writing the program code of the solution informally represe
Setler [38]

Answer:

writing the steps of a solution in small pieces of code

Step-by-step explanation:

edg 2020

4 0
2 years ago
Chelsea played her tuba from 4:25 pm until 5:07
melisa1 [442]

Answer:

42 minutes

Step-by-step explanation:

if you are asking how long it takes Chelsea to play her tuba then you do:       67 - 25 = 42

7 0
3 years ago
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