00:01
In this question we have given population mean mu is equal to 60 and standard deviation sigma is equal to 12.
00:08
Now we have to find the z score of given x values and we know that the formula for finding the z score is equal to x minus mu divided by sigma and here we have given these x values we have to find the z value.
00:25
So first x value is 69.
00:28
So z score for this x value is equal to 69 minus 60 divided by 12 and on solving this we will get equal to 0 .75.
00:43
Next x value is 84.
00:46
So the z score for this x value is equal to 84 minus 60 divided by 12 and on solving this we will get equal to 2.
00:56
Then third x value is 63.
01:00
So z score is equal to 63 minus 60 divided by 12 which is equal to 0 .25.
01:10
Moving forward fourth x value is 54.
01:15
So z score is equal to 54 minus 60 divided by 12 and on solving this we will get equal to minus 0 .5.
01:27
Fifth x value is 48.
01:31
So z score is equal to 48 minus 60 divided by 12 and on solving this we will get equal to minus 1.
01:43
Then sixth x value is 45...