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ra1l [238]
1 year ago
5

Using the table below, find the mean and median of the set of data.

Mathematics
1 answer:
Slav-nsk [51]1 year ago
5 0

Using their concepts concept, we have that:

a) The mean of the data-set is of 81.6.

b) The median of the data-set is of 80.

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

The mean of a data-set is given by the <u>sum of all observations in the data-set divided by the number of observations</u>.

In this problem, there are 2 + 8 + 6 + 3 + 9 = 28 observations, hence the mean is:

M = (70 x 2 + 75 x 8 + 80 x 6 + 85 x 3 + 90 x 9)/28 = 81.6.

<h3>What is the median?</h3>

The median of a data-set is the 50th percentile, the value that separates the median in two halfs.

This data-set has an even number of elements, hence the median is the mean of the 14th and 15th elements, as 28/2 = 14. Both elements are 80, hence the median is of 80.

More can be learned about the mean and the median of a data-set brainly.com/question/13202035

#SPJ1

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What is 23/2 converted into a mixed numeral
Cerrena [4.2K]

Answer:

11 1/2

Step-by-step explanation:

22 divided by 2 is 11, and there is 1 left over. So that is 1/2. The mixed number is 11 1/2

4 0
3 years ago
A + b = 9<br> a - b = 6<br> what is a/b?
Dahasolnce [82]

Answer:

5

Step-by-step explanation:

hello :

a + b = 9

...(*)

a - b = 6...(**)

add (*) and (**) : 2a =15.....(1)

subsct (**) and (*) : 2b=3  ....(2)

now divid (1) , (2) :  2a/2b = 15/3

means : a/b = 15/3 =5

8 0
3 years ago
Read 2 more answers
. Find the probability that the coin turns up heads for the first time on the tenth, eleventh, or twelfth toss.
Degger [83]

Answer:

0.001709

Step-by-step explanation:

The probability of getting 9 tails then 1 head is:

(½)⁹ (½)¹ = (½)¹⁰

The probability of getting 10 tails then 1 head is:

(½)¹⁰ (½)¹ = (½)¹¹

The probability of getting 11 tails then 1 head is:

(½)¹¹ (½)¹ = (½)¹²

The total probability is:

(½)¹⁰ + (½)¹¹ + (½)¹²

0.001709

3 0
2 years ago
A carpenter brought a piece of wood that was 12 centimeters long. Then he sawed 24.53 centimeters off the end. How long is the p
katrin2010 [14]

Answer:

12cm long x 24cm = Area 268cm

24,53cm height was cut off this we are not given the length, so this stays 24.53cm.

The 12cm length has been altered.

Step-by-step explanation:

6 0
3 years ago
What is the expected frequency of east campus and passed?
ser-zykov [4K]

The expected frequency of east campus and passed is C. 42 students

<h3>How to calculate the value?</h3>

The table for expected frequency is ,

East Campus West Campus Total

Passed (84*100)/22=42 (84*100)/200 =42 84

Failed (116*100)/200=58 (116*100)/22=58 116

Total 100 100 200

Passed = 84×100/200

= 42

Therefore, the expected frequency of East Campus and Passed is 42 students.

Learn more about frequency on:

brainly.com/question/254161

#SPJ4

3 0
8 months ago
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