Question

Need help with some portfolio question 30 point!

3.The mean rounded to the nearest tenth of the following data set is: 15,16,17,23,11,19,20,15,18,22,15,19
4.The mode of the following data set is:15,16,1723,11,19,20,15,18,22,15,19
5.The median(rounded to the nearest tenth if needed) of the following data set:15,16,17,23,11,19,20,15,18,22,15
6.The first quartile(rounded to the nearest tenth) of the following data set is: 15,16,17,23,11,19,20,15,18,22,15

Answer 1

3. 17.5
4. 15
5. 17
6. 15

Answer 2

3) Data : 15,16,17,23,11,19,20,15,18,22,15,19

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4) Mode of the data : The number which is repeated maximum number of time

Data : 15,16,17,23,11,19,20,15,18,22,15,19

From the above data we can see that 15 is repeated maximum number of times

So mode = 15

5) Data : 15,16,17,23,11,19,20,15,18,22,15

For median arrange all the data either from least to greatest or greatest to least

Data from least to greatest : 11, 15,15,15, 16,17,18,19,20,22,23

Number of data = 11

So middle number will be the median

Median = 17

6) Data : 15,16,17,23,11,19,20,15,18,22,15

The first quartile is defined as the middle number between the smallest number and the median of the data set.

Data arranged in lowest to greatest : 11, 15,15,15, 16,17,18,19,20,22,23

For 1st quartile, consider the data as 11, 15,15,15, 16

Middle number = first quartile = 15