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Anna71 [15]
1 year ago
5

Given that the circumferential of a circle is 22cm calculate its diameter​

Mathematics
1 answer:
Ipatiy [6.2K]1 year ago
6 0

Answer:

diameter =7 cm

Step-by-step explanation:

circum=2pi×r

2\pi \times r

2×pi×r=22

2×22÷7×r=22

r=22×7÷44

r=7÷2

r=3.5

d=2×r=2×3.5=7

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Four students found the mean of the data set 26, 31, 39, 30, 16, 16, 18, 38. which student found the correct mean? ashrita’s wor
balu736 [363]

In calculating the mean of this data set  Ashrita did the best job.

The  Mean of the data set is the most commonly used measures of central tendency.

It means the average value of the data set.

one doesn't have to arrange the data in order  for finding it.

<h3>What is the meaning of mean?</h3>

The data set value  takes is to add them all together and divide that by the number of the data.

It can be written as

,(x_1 + x_2 + x_3 + ..... + x_n) / n

Where x_1 , x_2 , x_3 , ..... ,x_nare the values in the data set

Therefore we can conclude that Ashrita did the best job in calculating the mean of this data set.

To learn more about the mean visit:

brainly.com/question/968894

6 0
2 years ago
Which of the following statements is not​ true? A. If the probability of an event occurring is​ 0, then it is impossible for tha
FromTheMoon [43]

Answer:

C. If the probability of an event occurring is​ 1.5, then it is certain that the event will occur.

Step-by-step explanation:

Probability is a value between <em>0 and 1</em> (including both values). Thus, to say that there is a probability of 1.5 is not correct, and, therefore, this statement is not true.

We can rewrite the statement as "If the probability of an event occurring is 1, then it is completely certain that the event will occur."

Statement A.

Suppose the event is A. Then, if P(A) = 0, it is completely certain that the event will not occur. It is true.

Statement B.

\\ if P(A) = 0\;then\;P(\overline{A}) = 1 - 0 = 1. Then, the statement is true.

Statement C.

We already explained the <em>statement C is not true</em> because the values for probabilities are between 0 and 1 (including both values). A probability of 1.5 is meaningless as a result.

Statement D.

For the same reason explained in C, the probability can never be a negative value. So, this statement is also true.  

4 0
3 years ago
Here are the heights in inches of 10 professional basketball players: 66, 74, 76, 77, 78, 79, 80, 80, 82, 84. The mean of these
Dvinal [7]

Answer:

Question 4: The set has 66 as an outlier and removing it increases the mean by about 1.3 inches.

Question 5: The set has 50 as an outlier and removing it increases the mean by about 3.

Step-by-step explanation:

<u>Question 4:</u><u> </u>

Given heights are:

66, 74, 76, 77, 78, 79, 80, 80, 82, 84

The mean is: 77.6 inches

Removing 66 will make the mean increase to 78.9

So,

<u>The set has 66 as an outlier and removing it increases the mean by about 1.3 inches.</u>

<u>Question 5:</u>

50, 74, 76, 77, 78, 79, 80, 80, 82, 84

The mean is 76.

We can clearly see that 50 is an outlier as it is quite less than the given data.

Calculating mean after removing 50 will give us mean equal to 78.9

So the correct answer is:

<u>The set has 50 as an outlier and removing it increases the mean by about 3.</u>

5 0
2 years ago
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LenKa [72]

Answer:

4

Step-by-step explanation:

5 0
2 years ago
A restaurant bill is $25.80. How<br> much is a 20% tip for this bill (NOT<br> the total)?
lozanna [386]

Answer:

25 pesos 80 pw

pesos I'm not sure

Step-by-step explanation:

25. 80

3 0
2 years ago
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