Question

Arizobal's grades as of first quarter are 90,90,81,81,85,93,90,83.compute the mean, median and mode of her grades

Answer 1

Answer:

mean is 86.625

median is 87.5

mode is 90

Step-by-step explanation:

To find the MEAN just add all the numbers that you are having and divide it by the total numbers you are having.

90+90+81+81+85+93+90+83/8 (u r hving 8 total numbers)

To find the MEDIAN(it is the middle number) arrange all the numbers in ascending order,,,,, 81,81,83,85,90,90,90,93

N if u r hving two middle numbers then find the mean of that two numbers just like in this case....... 85 n 90 r the two middle numbers so 85+90/2 (as the number is two )

To find the MODE it is the most occurring number

Above u arranged the numbers so that will solve this case.

see there 90 is occurring three times n that is the most occurring number

HOPE IT HELPS YOU!!

Answer 2

Answer:

Step-by-step explanation:

Total Numbers in Set:8

Mean (Average):86.625

Median (Middle):(85+90)/2 = 87.5

Mode (Most Common):90

Range (Biggest - Smallest):12

Ascending Order:81,81,83,85,90,90,90,93

Decending Order:93,90,90,90,85,83,81,81

Even Numbers:90,90,90

Odd Numbers:81,81,83,85,93

Mean

The average of all the data in a set.

Median

The value in a set which is most close to the middle of a range.

Mode

The value which occures most frequently in a data set.

Range

The difference between the largest and smallest data in a data set.

Example Calculation

Calculate the mean, median, mode and range for 3, 19, 9, 7, 27, 4, 8, 15, 3, 11.

How to Find the Mean (or Average Value)

To figure the mean, add up the numbers, 3+3+4+7+8+9+11+15+19+27=106 then divide it by the number of data points 106/10=10.6.

How to Find the Median

In ascending order the numbers are 3, 3, 4, 7, 8, 9, 11, 15, 19, 27. There are 10 total numbers, so the 5th and 6th numbers are used to figure the median. (8+9)/2 = 8.5

If there were 9 numbers in the series rather than 10 you would take the 5th number and would not need to average the 2 middle numbers. The 2 middle numbers only need to be averaged when the data set has an even number of data points in it.

How to Find the Mode

The only number which appears multiple times is 3, so it is the mode.

How to Find the Range

To figure the range subtract the smallest number from the largest number 27-3=24.